Flow of Control – NCERT Class 11 Computer Science Chapter 6 – Conditional and Looping Constructs in Python

Explains how Python manages the order of execution of statements using control structures. Covers conditional statements (if, if-else, if-elif), indentation rules, and looping constructs (for and while). Introduces range() function, nested loops, and the use of break and continue statements with various examples. Highlights flowcharts, iteration logic, and pattern generation for better understanding of program control flow.

Updated: 8 months ago

Categories: NCERT, Class XI, Computer Science, Python, Flow of Control, Conditional Statements, Looping, Chapter 6

Tags: Flow of Control, Conditional Statements, If Else, Elif, Loops, For Loop, While Loop, Range Function, Break Statement, Continue Statement, Nested Loops, Indentation, Decision Making, Iteration, NCERT Class 11, Computer Science, Chapter 6

Flow of Control: NCERT Class 11 Chapter 6 - Enhanced Study Guide, Precise Notes, Diagrams & Quiz 2025

Enhanced Full Chapter Summary & Precise Notes from NCERT PDF (22 Pages)

Overview & Key Concepts

Exact Definition: "The order of execution of the statements in a program is known as flow of control. The flow of control can be implemented using control structures. Python supports two types of control structures—selection and repetition."

Introduction: Sequence from Ch 5; Bus analogy (Fig 6.1); Quote: G. van Rossum on indentation.
Chapter Structure: Selection (if/else/elif), Indentation, Repetition (for/while), Break/Continue, Nested Loops.
2025 Relevance: Control in AI loops (e.g., TensorFlow training); Indentation in VS Code; Nested for data processing.

6.1 Introduction to Flow of Control

Precise: Sequential execution; Control structures: Selection/Repetition. Expanded: Program 6-1 (difference); Flow like bus route.

Precise Fig 6.1: Bus to School (SVG)

Program 6-1: Difference of Two Numbers

#Program 6-1
#Program to print the difference of two input numbers
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
diff = num1 - num2
print("The difference of",num1,"and",num2,"is",diff)

Output:
Enter first number 5
Enter second number 7
The difference of 5 and 7 is -2

6.2 Selection

Precise: Decision making (if/else/elif); Positive difference (Prog 6-2); Flowchart Fig 6.2. Expanded: Nested if in calculator (Prog 6-3).

Precise Fig 6.2: Decision Flowchart (SVG)

Program 6-2: Positive Difference

#Program 6-2
#Program to print the positive difference of two numbers
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
if num1 > num2:
     diff = num1 - num2
else:
     diff = num2 - num1
print("The difference of",num1,"and",num2,"is",diff)

Output:
Enter first number: 5
Enter second number: 6
The difference of 5 and 6 is 1

Program 6-3: Simple Calculator

#Program to create a four function calculator
result = 0
val1 = float(input("Enter value 1: "))
val2 = float(input("Enter value 2: "))
op = input("Enter any one of the operator (+,-,*,/): ")
if op == "+":
    result = val1 + val2
elif op == "-":
    if val1 > val2:
        result = val1 - val2
    else:
        result = val2 - val1
elif op == "*":
        result = val1 * val2
elif op == "/":
    if val2 == 0:
        print("Error! Division by zero is not allowed. Program terminated")
    else:
        result = val1/val2
else:
    print("Wrong input,program terminated")
print("The result is ",result)

Output:
Enter value 1: 84
Enter value 2: 4
Enter any one of the operator (+,-,*,/): /
The result is 21.0

Example 6.1: if Syntax

age = int(input("Enter your age "))
if age >= 18:
    print("Eligible to vote")

Example 6.2: if-elif-else (Positive/Negative/Zero)

number = int(input("Enter a number: "))
if number > 0:
     print("Number is positive")
elif number < 0:
     print("Number is negative")
else:
     print("Number is zero")

Example 6.3: Traffic Signal

signal = input("Enter the colour: ")
if signal == "red" or signal == "RED":                
     print("STOP")
elif signal == "orange" or signal == "ORANGE":    
     print("Be Slow")
elif signal == "green" or signal == "GREEN":          
     print("Go!")

6.3 Indentation

Precise: Whitespace for blocks; Strict check; Single tab common. Expanded: Prog 6-4 shows blocks.

Program 6-4: Larger of Two Numbers

#Program 6-4
#Program to find larger of the two numbers
num1 = 5
num2 = 6
if num1 > num2:         
     #Block1
     print("first number is larger")         
     print("Bye")
else:   
     #Block2
     print("second number is larger")   
     print("Bye Bye")

Output:
second number is larger
Bye Bye

6.4 Repetition

Precise: Loops for iteration; Butterfly cycle (Fig 6.3); For/While. Expanded: Prog 6-5 (sequence); Range() function.

Precise Fig 6.3: Iterative Process (SVG)

Program 6-5: First Five Natural Numbers

#Program 6-5
#Print first five natural numbers
print(1)
print(2)
print(3)
print(4)
print(5)

Output:
1
2
3
4
5

Program 6-6: Print 'PYTHON' Characters

#Program 6-6
#Print the characters in word PYTHON using for loop
for letter in 'PYTHON':
     print(letter)

Output:
P
Y
T
H
O
N

Program 6-7: Print Sequence [10,20,30,40,50]

#Program 6-7
#Print the given sequence of numbers using for loop
count = [10,20,30,40,50]
for num in count:
     print(num)

Output:
10
20
30
40
50

Program 6-8: Even Numbers

#Program 6-8
#Print even numbers in the given sequence
numbers = [1,2,3,4,5,6,7,8,9,10]
for num in numbers:
     if (num % 2) == 0:
          print(num,'is an even Number')

Output:
2 is an even Number
4 is an even Number
6 is an even Number
8 is an even Number
10 is an even Number

Example 6.4: range() Function

>>> list(range(10)) 
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> list(range(2, 10))  
[2, 3, 4, 5, 6, 7, 8, 9]       
>>> list(range(0, 30, 5))  
[0, 5, 10, 15, 20, 25]   
>>> list (range (0, -9, -1))  
[0, -1, -2, -3, -4, -5, -6, -7, -8]

Program 6-9: Multiples of 10

#Program 6-9
#Print multiples of 10 for numbers in a given range
for num in range(5):
     if num > 0:
          print(num * 10)

Output:
10
20
30
40

Precise Fig 6.4: For Loop Flowchart (SVG)

Program 6-10: First 5 Natural (While)

#Program 6-10
#Print first 5 natural numbers using while loop
count = 1
while count <= 5:
     print(count)
     count += 1

Output:
1
2
3
4
5

Program 6-11: Factors of Number

#Program 6-11
#Find the factors of a number using while loop
num = int(input("Enter a number to find its factor: "))
print (1, end=' ')   #1 is a factor of every number
factor = 2  
while factor <= num/2 :
     if num % factor == 0:
          print(factor, end=' ') 
     factor += 1
print (num, end=' ') #every number is a factor of itself

Output:
Enter a number to find its factors : 6
1 2 3 6

Precise Fig 6.5: While Loop Flowchart (SVG)

6.5 Break and Continue

Precise: Break: Exit loop; Continue: Skip iteration. Expanded: Prog 6-12 (break at 8); Prog 6-13 (sum positives); Prog 6-14 (prime check).

Precise Fig 6.6: Break Flowchart (SVG)

Program 6-12: Break Demo

#Program 6-12
#Program to demonstrate the use of break statement in loop
num = 0
for num in range(10):
     num = num + 1
     if num == 8:
          break
     print('Num has value ' + str(num))
print('Encountered break!! Out of loop')

Output:
Num has value 1
Num has value 2
Num has value 3
Num has value 4
Num has value 5
Num has value 6
Num has value 7
Encountered break!! Out of loop

Program 6-13: Sum Positives

#Program 6-13
#Find the sum of all the positive numbers entered by the user 
#till the user enters a negative number. 
entry = 0
sum1 = 0
print("Enter numbers to find their sum, negative number ends the loop:")
while True: 
     entry = int(input())
     if (entry < 0):
          break
     sum1 += entry
print("Sum =", sum1)

Output:
Enter numbers to find their sum, negative number ends the loop:
3
4
5
-1
Sum = 12

Program 6-14: Prime Check

#Program 6-14
#Write a Python program to check if a given number is prime or not.
num = int(input("Enter the number to be checked: "))
flag = 0       
 
if num > 1 :
     for i in range(2, int(num / 2)):
          if (num % i == 0):
               flag = 1     
               break       

     if flag == 1:
          print(num , "is not a prime number")
     else:
          print(num , "is a prime number")
else :
          print("Entered number is <= 1, execute again!")

Output 1:
Enter the number to be checked: 20
20 is not a prime number
Output 2:
Enter the number to check: 19
19 is a prime number

Precise Fig 6.7: Continue Flowchart (SVG)

Program 6-15: Continue Demo

#Program 6-15
#Prints values from 0 to 6 except 3
num = 0
for num in range(6):
     num = num + 1
     if num == 3:
          continue
     print('Num has value ' + str(num))
print('End of loop')

Output:
Num has value 1
Num has value 2
Num has value 4
Num has value 5
Num has value 6
End of loop

6.6 Nested Loops

Precise: Loop inside loop; No limit on levels. Expanded: Prog 6-16 (nested for); Prog 6-17 (pattern); Prog 6-18 (primes 2-50); Prog 6-19 (factorial).

Program 6-16: Nested For

#Program 6-16
#Demonstrate working of nested for loops
for var1 in range(3):
    print( "Iteration " + str(var1 + 1) + " of outer loop")
    for var2 in range(2):    #nested loop
        print(var2 + 1)
    print("Out of inner loop")
print("Out of outer loop")

Output:
Iteration 1 of outer loop
1
2
Out of inner loop
Iteration 2 of outer loop
1
2
Out of inner loop
Iteration 3 of outer loop
1
2
Out of inner loop
Out of outer loop

Program 6-17: Pattern

#Program 6-17
#Program to print the pattern for a number input by the user
num = int(input("Enter a number to generate its pattern = "))
for i in range(1,num + 1):
     for j in range(1,i + 1):
          print(j, end = " ")
     print()

Output:
Enter a number to generate its pattern = 5
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

Program 6-18: Primes 2-50

#Program 6-18
#Use of nested loops to find the prime numbers between 2 to 50
num = 2
for i in range(2, 50):
     j= 2
     while ( j <= (i/2)):
          if (i % j == 0):     
               break           
          j += 1
     if ( j > i/j) :           
          print ( i, "is a prime number")
print ("Bye Bye!!")

Output:
2 is a prime number
3 is a prime number
5 is a prime number
7 is a prime number
11 is a prime number
13 is a prime number
17 is a prime number
19 is a prime number
23 is a prime number
29 is a prime number
31 is a prime number
37 is a prime number
41 is a prime number
43 is a prime number
47 is a prime number
Bye Bye!!

Program 6-19: Factorial

#Program 6-19
#The following program uses a for loop nested inside an if..else 
#block to calculate the factorial of a given number
num = int(input("Enter a number: "))
fact = 1
# check if the number is negative, positive or zero
if num < 0:
    print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
    print("The factorial of 0 is 1")
else:
    for i in range(1, num + 1): 
        fact = fact * i
    print("factorial of ", num, " is ", fact)

Output:
Enter a number: 5
Factorial of 5 is 120

Enhanced Features (2025)

Full PDF integration, expanded programs (6-1 to 6-19), SVGs (Figs 6.1-6.7), detailed tables/examples, 30 Q&A updated, 10-Q quiz. Focus: Hands-on control flow.

Exam Tips

Write programs (positive diff/prime/pattern); Explain syntax/flowcharts; Differentiate for/while; Use break/continue in code; Nested loop examples.

30 Questions & Answers - NCERT Precise (Updated with Full Chapter)

Expanded: 10 (1-mark), 10 (4-marks), 10 (8-marks) based on full chapter; Mark-based with precise lines.

1-Mark Questions (10 Questions, One-Line Answers)

Q1: What is flow of control?

Ans: Order of statement execution.

Q2: Types of control structures?

Ans: Selection and repetition.

Q3: Syntax for if?

Ans: if condition: statements.

Q4: Purpose of elif?

Ans: Chain multiple conditions.

Q5: Indentation uses?

Ans: Define code blocks.

Q6: For loop iterates over?

Ans: Sequence or range.

Q7: While loop condition checked?

Ans: Before body execution.

Q8: Break does what?

Ans: Exits the loop.

Q9: Continue skips?

Ans: Rest of current iteration.

Q10: Nested loop is?

Ans: Loop inside another loop.

4-Mark Questions (10 Questions, Five-Line Answers)

Q11: Explain selection with syntax.

Ans: Decision making; if: condition true execute block. if-else: Two paths. if-elif-else: Multiple alternatives. Nested for sub-conditions (Prog 6-3). Fig 6.2 flowchart.

Q12: Differentiate for and while.

Ans: For: Known iterations, over sequence/range. While: Condition-based, test first. For: Exhausts items. While: Update to avoid infinite. Progs 6-6/6-10.

Q13: Describe indentation rules.

Ans: Whitespace (tab/spaces) for blocks; Same level groups statements. Strict syntax errors. Common: 1 tab/level. Prog 6-4 example.

Q14: Explain range() function.

Ans: range(start, stop, step); Integers sequence excluding stop. Default start=0, step=1. Positive/negative step. Ex 6.4 examples; Used in for loops.

Q15: Purpose of break/continue.

Ans: Break: Terminate loop early. Continue: Skip to next iteration. Flexibility in flow. Progs 6-12/6-15. Figs 6.6/6.7.

Q16: Nested loops application.

Ans: Inner repeats per outer; Patterns/primes/factorial. Prog 6-17 (triangle); No nesting limit. Mix for/while.

Q17: Infinite loop issue.

Ans: Condition never false; Logical error. Ensure update (count +=1). While without increment example.

Q18: Positive difference program.

Ans: if num1 > num2: diff=num1-num2 else: diff=num2-num1. Prog 6-2; Always absolute value.

Q19: Prime number check.

Ans: For i in 2 to num/2: if divisible break. Flag=1 not prime. Prog 6-14; Outputs for 20/19/2/1.

Q20: Pattern printing.

Ans: Nested for: Outer rows, inner columns. Prog 6-17; 1 to n triangle.

8-Mark Questions (10 Questions, Ten-Line Answers)

Q21: Explain introduction and selection.

Ans: Sequence to control; Selection for decisions (pen/path). if/else/elif syntax/examples (Ex 6.1-6.3). Prog 6-2 positive diff. Nested in calculator (Prog 6-3). Flowchart Fig 6.2. Van Rossum quote.

Q22: Detail indentation and repetition intro.

Ans: Indentation: Blocks without braces; Strict. Prog 6-4. Repetition: Iteration like bills/butterfly (Fig 6.3). Avoid 100k prints; Logic: Init-print-increment. Prog 6-5 sequence.

Q23: Describe for loop with range.

Ans: Iterates sequence; Syntax; Flow Fig 6.4. Progs 6-6/6-7/6-8 evens. range(): Parameters/examples (Ex 6.4). Prog 6-9 multiples. Known iterations.

Q24: Discuss while loop and examples.

Ans: Condition true repeat; Syntax; Flow Fig 6.5. Progs 6-10 naturals, 6-11 factors. Update to exit; Infinite risk. end=' ' for same line.

Q25: Elaborate break/continue with programs.

Ans: Break: Exit (Prog 6-12, 6-13 sum, 6-14 prime). Continue: Skip (Prog 6-15). Flow Figs 6.6/6.7. Flexibility; No infinite.

Q26: Explain nested loops with applications.

Ans: Loop in loop; Prog 6-16 demo. Patterns (6-17), primes (6-18 while inner), factorial (6-19). Unlimited levels; Mix types.

Q27: How control structures build programs?

Ans: Sequence base; Selection branches; Repetition iterates. Combined: Calculator/nested. Indentation enforces. 2025: Essential for algorithms/AI.

Q28: Difference between selection/repetition.

Ans: Selection: Choose path (if). Repetition: Repeat block (loops). Both alter sequence. Examples: Voting (select), naturals (repeat).

Q29: Role of indentation in Python.

Ans: Defines scope/blocks; No braces. Same indent level groups. Errors if wrong. Prog 6-4; Van Rossum: Guarantees proper indent.

Q30: Apply chapter to exercises like patterns/primes.

Ans: Nested loops for patterns (Ex 9); Break in primes. If-elif for grades (Ex 10). Case study: SMIS menu with selection/repetition.

Tip: Include programs/flowcharts in answers; Practice patterns/primes.

Concept	Precise Description	Example	Process/2025 Note
Selection	if/else/elif decisions	Positive diff (Prog 6-2)	Branch flow
Indentation	Block definition	1 tab/level (Prog 6-4)	Strict syntax
For Loop	Over range/sequence	Print 'PYTHON' (6-6)	Known iterations
While Loop	Condition repeat	Factors (6-11)	Avoid infinite
Break	Exit loop	At 8 (6-12)	Early terminate
Continue	Skip iteration	Skip 3 (6-15)	Next cycle
Nested Loops	Loop in loop	Pattern (6-17)	Patterns/primes
Range	Integer sequence	range(0,10) [0-9]	For generation

This article has been published in CBSE Class 11 Annual Assessment. Explore everything related to it here.

Recommended BooksSee All →

35% OFF

Bhagvad Gita – The Story Way for Students & Parents

₹194M.R.P. ₹299

Buy on Amazon

34% OFF

You Can – The Classic Guide to Self-Belief & Personal Growth

₹99M.R.P. ₹149

Buy on Amazon

Atomic Habits – Tiny Changes, Remarkable Results

₹521

Buy on Amazon

As an Amazon Associate, ProSyllabus earns from qualifying purchases. Prices shown are subject to change.

Practice Quiz

Test your CBSE Class 11 Annual Assessment prep

🎁New here? Your first purchase is just ₹1 — 120 coins with code RAMANUJAN_1

Quizzes

10 questions · ~10 minutes · instant rank & AI diagnosis

2 attempts on CBSE Class 11 Annual Assessment quizzes

f scored 4/10 on Accountancy (Class 11) Subhash scored 1/10 on Sets and Venn Operations f scored 4/10 on Accountancy (Class 11) Subhash scored 1/10 on Sets and Venn Operations

Accountancy (Class 11) Practice Quiz | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

Sets and Venn Operations Fundamentals — Free CBSE Class 11 Annual Assessment Quiz

10 Qs · ~10 min

Class 11 English — The Tale of Melon City (Practice Quiz)

10 Qs · ~10 min

Class 11 English — Birth (Practice Quiz)

10 Qs · ~10 min

Class 11 English — Mother's Day (Practice Quiz)

10 Qs · ~10 min

Class 11 English — The Address (Practice Quiz)

10 Qs · ~10 min

Class 11 English — The Summer of the Beautiful White Horse (Practice Quiz)

10 Qs · ~10 min

Class 11 English — Father to Son (Practice Quiz)

10 Qs · ~10 min

Class 11 English — Silk Road (Practice Quiz)

10 Qs · ~10 min

#10

Class 11 English — The Adventure (Practice Quiz)

10 Qs · ~10 min

#11

Class 11 English — Childhood (Practice Quiz)

10 Qs · ~10 min

#12

Class 11 English — The Ailing Planet: the Green Movement's Role (Practice Quiz)

10 Qs · ~10 min

#13

Class 11 English — The Voice of the Rain (Practice Quiz)

10 Qs · ~10 min

#14

Class 11 English — The Laburnum Top (Practice Quiz)

10 Qs · ~10 min

#15

Class 11 English — Discovering Tut: the Saga Continues (Practice Quiz)

10 Qs · ~10 min

#16

Class 11 English — We're Not Afraid to Die... if We Can All Be Together (Practice Quiz)

10 Qs · ~10 min

#17

Class 11 English — A Photograph (Practice Quiz)

10 Qs · ~10 min

#18

Class 11 English — The Portrait of a Lady (Practice Quiz)

10 Qs · ~10 min

#19

Class 11 Psychology — Motivation and Emotion (Practice Quiz)

10 Qs · ~10 min

#20

Class 11 Psychology — Thinking (Practice Quiz)

10 Qs · ~10 min

#21

Class 11 Psychology — Human Memory (Practice Quiz)

10 Qs · ~10 min

#22

Class 11 Psychology — Learning (Practice Quiz)

10 Qs · ~10 min

#23

Class 11 Psychology — Sensory, Attentional and Perceptual Processes (Practice Quiz)

10 Qs · ~10 min

#24

Class 11 Psychology — Human Development (Practice Quiz)

10 Qs · ~10 min

#25

Class 11 Psychology — Methods of Enquiry in Psychology (Practice Quiz)

10 Qs · ~10 min

#26

Class 11 Psychology — What is Psychology? (Practice Quiz)

10 Qs · ~10 min

#27

Class 11 Sociology — Indian Sociologists (Practice Quiz)

10 Qs · ~10 min

#28

Class 11 Sociology — Introducing Western Sociologists (Practice Quiz)

10 Qs · ~10 min

#29

Class 11 Sociology — Environment and Society (Practice Quiz)

10 Qs · ~10 min

#30

Class 11 Sociology — Social Change and Social Order in Rural and Urban Society (Practice Quiz)

10 Qs · ~10 min

#31

Class 11 Sociology — Social Structure, Stratification and Social Processes in Society (Practice Quiz)

10 Qs · ~10 min

#32

Class 11 Sociology — Doing Sociology: Research Methods (Practice Quiz)

10 Qs · ~10 min

#33

Class 11 Sociology — Culture and Socialisation (Practice Quiz)

10 Qs · ~10 min

#34

Class 11 Sociology — Understanding Social Institutions (Practice Quiz)

10 Qs · ~10 min

#35

Class 11 Sociology — Terms, Concepts and Their Use in Sociology (Practice Quiz)

10 Qs · ~10 min

#36

Class 11 Sociology — Sociology and Society (Practice Quiz)

10 Qs · ~10 min

#37

Class 11 Political Science — The Philosophy of the Constitution (Practice Quiz)

10 Qs · ~10 min

#38

Class 11 Political Science — Constitution as a Living Document (Practice Quiz)

10 Qs · ~10 min

#39

Class 11 Political Science — Local Governments (Practice Quiz)

10 Qs · ~10 min

#40

Class 11 Political Science — Federalism (Practice Quiz)

10 Qs · ~10 min

#41

Class 11 Political Science — Judiciary (Practice Quiz)

10 Qs · ~10 min

#42

Class 11 Political Science — Legislature (Practice Quiz)

10 Qs · ~10 min

#43

Class 11 Political Science — Executive (Practice Quiz)

10 Qs · ~10 min

#44

Class 11 Political Science — Election and Representation (Practice Quiz)

10 Qs · ~10 min

#45

Class 11 Political Science — Rights in the Indian Constitution (Practice Quiz)

10 Qs · ~10 min

#46

Class 11 Political Science — Constitution: Why and How? (Practice Quiz)

10 Qs · ~10 min

#47

Class 11 Political Science — Secularism (Practice Quiz)

10 Qs · ~10 min

#48

Class 11 Political Science — Nationalism (Practice Quiz)

10 Qs · ~10 min

#49

Class 11 Political Science — Citizenship (Practice Quiz)

10 Qs · ~10 min

#50

Class 11 Political Science — Rights (Practice Quiz)

10 Qs · ~10 min

#51

Class 11 Political Science — Social Justice (Practice Quiz)

10 Qs · ~10 min

#52

Class 11 Political Science — Equality (Practice Quiz)

10 Qs · ~10 min

#53

Class 11 Political Science — Freedom (Practice Quiz)

10 Qs · ~10 min

#54

Class 11 Political Science — Political Theory: An Introduction (Practice Quiz)

10 Qs · ~10 min

#55

Class 11 Geography — Natural Hazards and Disasters (Practice Quiz)

10 Qs · ~10 min

#56

Class 11 Geography — Natural Vegetation (Practice Quiz)

10 Qs · ~10 min

#57

Class 11 Geography — Climate (Practice Quiz)

10 Qs · ~10 min

#58

Class 11 Geography — Drainage System (Practice Quiz)

10 Qs · ~10 min

#59

Class 11 Geography — Structure and Physiography (Practice Quiz)

10 Qs · ~10 min

#60

Class 11 Geography — India – Location (Practice Quiz)

10 Qs · ~10 min

#61

Class 11 Geography — Biodiversity and Conservation (Practice Quiz)

10 Qs · ~10 min

#62

Class 11 Geography — Movements of Ocean Water (Practice Quiz)

10 Qs · ~10 min

#63

Class 11 Geography — Water (Oceans) (Practice Quiz)

10 Qs · ~10 min

#64

Class 11 Geography — World Climate and Climate Change (Practice Quiz)

10 Qs · ~10 min

#65

Class 11 Geography — Water in the Atmosphere (Practice Quiz)

10 Qs · ~10 min

#66

Class 11 Geography — Atmospheric Circulation and Weather Systems (Practice Quiz)

10 Qs · ~10 min

#67

Class 11 Geography — Solar Radiation, Heat Balance and Temperature (Practice Quiz)

10 Qs · ~10 min

#68

Class 11 Geography — Composition and Structure of Atmosphere (Practice Quiz)

10 Qs · ~10 min

#69

Class 11 Geography — Landforms and their Evolution (Practice Quiz)

10 Qs · ~10 min

#70

Class 11 Geography — Geomorphic Processes (Practice Quiz)

10 Qs · ~10 min

#71

Class 11 Geography — Distribution of Oceans and Continents (Practice Quiz)

10 Qs · ~10 min

#72

Class 11 Geography — Interior of the Earth (Practice Quiz)

10 Qs · ~10 min

#73

Class 11 Geography — The Origin and Evolution of the Earth (Practice Quiz)

10 Qs · ~10 min

#74

Class 11 Geography — Geography as a Discipline (Practice Quiz)

10 Qs · ~10 min

#75

Class 11 History — Paths to Modernisation (Practice Quiz)

10 Qs · ~10 min

#76

Class 11 History — Displacing Indigenous Peoples (Practice Quiz)

10 Qs · ~10 min

#77

Class 11 History — Changing Cultural Traditions (Practice Quiz)

10 Qs · ~10 min

#78

Class 11 History — The Three Orders (Practice Quiz)

10 Qs · ~10 min

#79

Class 11 History — Nomadic Empires (Practice Quiz)

10 Qs · ~10 min

#80

Class 11 History — An Empire Across Three Continents (Practice Quiz)

10 Qs · ~10 min

#81

Class 11 History — Writing and City Life (Practice Quiz)

10 Qs · ~10 min

#82

Class 11 Economics — Comparative Development Experiences of India and its Neighbours (Practice Quiz)

10 Qs · ~10 min

#83

Class 11 Economics — Environment and Sustainable Development (Practice Quiz)

10 Qs · ~10 min

#84

Class 11 Economics — Employment: Growth, Informalisation and Other Issues (Practice Quiz)

10 Qs · ~10 min

#85

Class 11 Economics — Rural Development (Practice Quiz)

10 Qs · ~10 min

#86

Class 11 Economics — Human Capital Formation in India (Practice Quiz)

10 Qs · ~10 min

#87

Class 11 Economics — Liberalisation, Privatisation and Globalisation: An Appraisal (Practice Quiz)

10 Qs · ~10 min

#88

Class 11 Economics — Indian Economy 1950-1990 (Practice Quiz)

10 Qs · ~10 min

#89

Class 11 Economics — Indian Economy on the Eve of Independence (Practice Quiz)

10 Qs · ~10 min

#90

Class 11 Economics — Use of Statistical Tools (Practice Quiz)

10 Qs · ~10 min

#91

Class 11 Economics — Index Numbers (Practice Quiz)

10 Qs · ~10 min

#92

Class 11 Economics — Correlation (Practice Quiz)

10 Qs · ~10 min

#93

Class 11 Economics — Measures of Central Tendency (Practice Quiz)

10 Qs · ~10 min

#94

Class 11 Economics — Presentation of Data (Practice Quiz)

10 Qs · ~10 min

#95

Class 11 Economics — Organisation of Data (Practice Quiz)

10 Qs · ~10 min

#96

Class 11 Economics — Collection of Data (Practice Quiz)

10 Qs · ~10 min

#97

Class 11 Economics — Introduction (Practice Quiz)

10 Qs · ~10 min

#98

Class 11 Business Studies — International Business (Practice Quiz)

10 Qs · ~10 min

#99

Class 11 Business Studies — Internal Trade (Practice Quiz)

10 Qs · ~10 min

#100

Class 11 Business Studies — MSME and Business Entrepreneurship (Practice Quiz)

10 Qs · ~10 min

#101

Class 11 Business Studies — Sources of Business Finance (Practice Quiz)

10 Qs · ~10 min

#102

Class 11 Business Studies — Formation of a Company (Practice Quiz)

10 Qs · ~10 min

#103

Class 11 Business Studies — Social Responsibilities of Business and Business Ethics (Practice Quiz)

10 Qs · ~10 min

#104

Class 11 Business Studies — Emerging Modes of Business (Practice Quiz)

10 Qs · ~10 min

#105

Class 11 Business Studies — Business Services (Practice Quiz)

10 Qs · ~10 min

#106

Class 11 Business Studies — Private, Public and Global Enterprises (Practice Quiz)

10 Qs · ~10 min

#107

Class 11 Business Studies — Forms of Business Organisation (Practice Quiz)

10 Qs · ~10 min

#108

Class 11 Business Studies — Business, Trade and Commerce (Practice Quiz)

10 Qs · ~10 min

#109

Class 11 Accountancy — Financial Statements - II (Practice Quiz)

10 Qs · ~10 min

#110

Class 11 Accountancy — Financial Statements - I (Practice Quiz)

10 Qs · ~10 min

#111

Class 11 Accountancy — Depreciation, Provisions and Reserves (Practice Quiz)

10 Qs · ~10 min

#112

Class 11 Accountancy — Trial Balance and Rectification of Errors (Practice Quiz)

10 Qs · ~10 min

#113

Class 11 Accountancy — Bank Reconciliation Statement (Practice Quiz)

10 Qs · ~10 min

#114

Class 11 Accountancy — Recording of Transactions - II (Practice Quiz)

10 Qs · ~10 min

#115

Class 11 Accountancy — Recording of Transactions - I (Practice Quiz)

10 Qs · ~10 min

#116

Class 11 Accountancy — Theory Base of Accounting (Practice Quiz)

10 Qs · ~10 min

#117

Class 11 Accountancy — Introduction to Accounting (Practice Quiz)

10 Qs · ~10 min

#118

Class 11 Maths — Probability (Practice Quiz)

10 Qs · ~10 min

#119

Class 11 Maths — Statistics (Practice Quiz)

10 Qs · ~10 min

#120

Class 11 Maths — Limits and Derivatives (Practice Quiz)

10 Qs · ~10 min

#121

Class 11 Maths — Introduction to Three Dimensional Geometry (Practice Quiz)

10 Qs · ~10 min

#122

Class 11 Maths — Conic Sections (Practice Quiz)

10 Qs · ~10 min

#123

Class 11 Maths — Straight Lines (Practice Quiz)

10 Qs · ~10 min

#124

Class 11 Maths — Sequences and Series (Practice Quiz)

10 Qs · ~10 min

#125

Class 11 Maths — Binomial Theorem (Practice Quiz)

10 Qs · ~10 min

#126

Class 11 Maths — Permutations and Combinations (Practice Quiz)

10 Qs · ~10 min

#127

Class 11 Maths — Linear Inequalities (Practice Quiz)

10 Qs · ~10 min

#128

Class 11 Maths — Complex Numbers and Quadratic Equations (Practice Quiz)

10 Qs · ~10 min

#129

Class 11 Maths — Relations and Functions (Practice Quiz)

10 Qs · ~10 min

#130

Class 11 Maths — Sets (Practice Quiz)

10 Qs · ~10 min

#131

Class 11 Biology — Chemical Coordination and Integration (Practice Quiz)

10 Qs · ~10 min

#132

Class 11 Biology — Neural Control and Coordination (Practice Quiz)

10 Qs · ~10 min

#133

Class 11 Biology — Locomotion and Movement (Practice Quiz)

10 Qs · ~10 min

#134

Class 11 Biology — Excretory Products and their Elimination (Practice Quiz)

10 Qs · ~10 min

#135

Class 11 Biology — Body Fluids and Circulation (Practice Quiz)

10 Qs · ~10 min

#136

Class 11 Biology — Breathing and Exchange of Gases (Practice Quiz)

10 Qs · ~10 min

#137

Class 11 Biology — Plant Growth and Development (Practice Quiz)

10 Qs · ~10 min

#138

Class 11 Biology — Respiration in Plants (Practice Quiz)

10 Qs · ~10 min

#139

Class 11 Biology — Photosynthesis in Higher Plants (Practice Quiz)

10 Qs · ~10 min

#140

Class 11 Biology — Cell Cycle and Cell Division (Practice Quiz)

10 Qs · ~10 min

#141

Class 11 Biology — Biomolecules (Practice Quiz)

10 Qs · ~10 min

#142

Class 11 Biology — Cell: The Unit of Life (Practice Quiz)

10 Qs · ~10 min

#143

Class 11 Biology — Structural Organisation in Animals (Practice Quiz)

10 Qs · ~10 min

#144

Class 11 Biology — Anatomy of Flowering Plants (Practice Quiz)

10 Qs · ~10 min

#145

Class 11 Biology — Morphology of Flowering Plants (Practice Quiz)

10 Qs · ~10 min

#146

Class 11 Biology — Animal Kingdom (Practice Quiz)

10 Qs · ~10 min

#147

Class 11 Biology — Plant Kingdom (Practice Quiz)

10 Qs · ~10 min

#148

Class 11 Biology — Biological Classification (Practice Quiz)

10 Qs · ~10 min

#149

Class 11 Biology — The Living World (Practice Quiz)

10 Qs · ~10 min

#150

Class 11 Chemistry — Hydrocarbons (Practice Quiz)

10 Qs · ~10 min

#151

Class 11 Chemistry — Organic Chemistry – Some Basic Principles and Techniques (Practice Quiz)

10 Qs · ~10 min

#152

Class 11 Chemistry — Redox Reactions (Practice Quiz)

10 Qs · ~10 min

#153

Class 11 Chemistry — Equilibrium (Practice Quiz)

10 Qs · ~10 min

#154

Class 11 Chemistry — Chemical Bonding and Molecular Structure (Practice Quiz)

10 Qs · ~10 min

#155

Class 11 Chemistry — Classification of Elements and Periodicity in Properties (Practice Quiz)

10 Qs · ~10 min

#156

Class 11 Chemistry — Some Basic Concepts of Chemistry (Practice Quiz)

10 Qs · ~10 min

#157

Class 11 Physics — Waves (Practice Quiz)

10 Qs · ~10 min

#158

Class 11 Physics — Oscillations (Practice Quiz)

10 Qs · ~10 min

#159

Class 11 Physics — Kinetic Theory (Practice Quiz)

10 Qs · ~10 min

#160

Class 11 Chemistry — Thermodynamics (Practice Quiz)

10 Qs · ~10 min

#161

Class 11 Physics — Thermal Properties of Matter (Practice Quiz)

10 Qs · ~10 min

#162

Class 11 Physics — Mechanical Properties of Fluids (Practice Quiz)

10 Qs · ~10 min

#163

Class 11 Physics — Mechanical Properties of Solids (Practice Quiz)

10 Qs · ~10 min

#164

Class 11 Physics — Gravitation (Practice Quiz)

10 Qs · ~10 min

#165

Class 11 Physics — Systems of Particles and Rotational Motion (Practice Quiz)

10 Qs · ~10 min

#166

Class 11 Physics — Work, Energy and Power (Practice Quiz)

10 Qs · ~10 min

#167

Class 11 Physics — Motion in a Plane (Practice Quiz)

10 Qs · ~10 min

#168

Class 11 Physics — Motion in a Straight Line (Practice Quiz)

10 Qs · ~10 min

#169

Class 11 Physics — Units and Measurement (Practice Quiz)

10 Qs · ~10 min

#170

Class 11 Maths — Trigonometric Functions (Practice Quiz)

10 Qs · ~10 min

#171

Class 11 Chemistry — Structure of Atom (Practice Quiz)

10 Qs · ~10 min

#172

Class 11 Physics — Laws of Motion (Practice Quiz)

10 Qs · ~10 min

#173

Business Studies (Class 11) Practice Quiz | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

#174

Economics (Class 11) Practice Quiz | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

#175

Humanities Subjects Practice Quiz | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

#176

Motion in a Straight Line Practice Quiz | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

#177

Thermodynamic Processes and Laws Advanced Challenge | CBSE Class 11 Annual Assessment

10 Qs · ~10 min

Group Discussions

No forum posts available.

Easily Share with Your Tribe

Flow of Control – NCERT Class 11 Computer Science Chapter 6 – Conditional and Looping Constructs in Python

Flow of Control

Enhanced Full Chapter Summary & Precise Notes from NCERT PDF (22 Pages)

Overview & Key Concepts

6.1 Introduction to Flow of Control

Precise Fig 6.1: Bus to School (SVG)

Program 6-1: Difference of Two Numbers

6.2 Selection

Precise Fig 6.2: Decision Flowchart (SVG)

Program 6-2: Positive Difference

Program 6-3: Simple Calculator

Example 6.1: if Syntax

Example 6.2: if-elif-else (Positive/Negative/Zero)

Example 6.3: Traffic Signal

6.3 Indentation

Program 6-4: Larger of Two Numbers

6.4 Repetition

Precise Fig 6.3: Iterative Process (SVG)

Program 6-5: First Five Natural Numbers

Program 6-6: Print 'PYTHON' Characters

Program 6-7: Print Sequence [10,20,30,40,50]

Program 6-8: Even Numbers

Example 6.4: range() Function

Program 6-9: Multiples of 10

Precise Fig 6.4: For Loop Flowchart (SVG)

Program 6-10: First 5 Natural (While)

Program 6-11: Factors of Number

Precise Fig 6.5: While Loop Flowchart (SVG)

6.5 Break and Continue

Precise Fig 6.6: Break Flowchart (SVG)

Program 6-12: Break Demo

Program 6-13: Sum Positives

Program 6-14: Prime Check

Precise Fig 6.7: Continue Flowchart (SVG)

Program 6-15: Continue Demo

6.6 Nested Loops

Program 6-16: Nested For

Program 6-17: Pattern

Program 6-18: Primes 2-50

Program 6-19: Factorial

Enhanced Features (2025)

Exam Tips

Selection Structures - if/else/elif Expanded

if Statement (Detailed)

if-else (Detailed)

if-elif-else (Detailed)

Selection Flow (SVG)

Indentation & Repetition - For/While Loops Expanded

Indentation (Detailed)

For Loop (Detailed)

While Loop (Detailed)

Loop Comparison (SVG)

Break/Continue & Nested Loops - Expanded Details & Examples

Break (Detailed)

Continue (Detailed)

Nested Loops (Detailed)

Nested Loop Flow (SVG)

30 Questions & Answers - NCERT Precise (Updated with Full Chapter)

1-Mark Questions (10 Questions, One-Line Answers)

Q1: What is flow of control?

Q2: Types of control structures?

Q3: Syntax for if?

Q4: Purpose of elif?

Q5: Indentation uses?

Q6: For loop iterates over?

Q7: While loop condition checked?

Q8: Break does what?

Q9: Continue skips?

Q10: Nested loop is?

4-Mark Questions (10 Questions, Five-Line Answers)

Q11: Explain selection with syntax.

Q12: Differentiate for and while.

Q13: Describe indentation rules.

Q14: Explain range() function.

Q15: Purpose of break/continue.

Q16: Nested loops application.

Q17: Infinite loop issue.

Q18: Positive difference program.

Q19: Prime number check.

Q20: Pattern printing.