Python for Loops MCQs – Multiple Choice Questions for Practice

Q1. What is the correct syntax for a basic for loop in Python?

• 🟢 A. for i in range(10) { print(i) }
• 🔵 B. for (i = 0; i < 10; i++) { print(i) }
• 🟠 C. for i in range(10): print(i)
• 🔴 D. loop i from 0 to 9: print(i)

Q2. What is the output of the following code snippet?

for i in range(10):
    if i % 2 == 0:
        print(i)

• 🟢 A. 0 1 2 3 4 5 6 7 8 9
• 🔵 B. 0 2 4 6 8
• 🟠 C. 2 4 6 8
• 🔴 D. IndentationError: expected an indented block

Q3. What is the correct syntax for a for loop in Python?

• 🟢 A. for (int i = 0; i < 10; i++):
• 🔵 B. for i in range(10):
• 🟠 C. for i = 0 to 9:
• 🔴 D. for i in 10:

Q4. What will be the output of the following code?

for i in range(5):
  print(i * 2)

• 🟢 A. 0 1 2 3 4
• 🔵 B. 2 4 6 8 10
• 🟠 C. 10 8 6 4 2
• 🔴 D. 0 2 4 6 8

Q5. What is the primary purpose of a for loop in Python?

• 🟢 A. To define a function
• 🔵 B. To iterate over a sequence
• 🟠 C. To create a conditional statement
• 🔴 D. To perform mathematical operations

Q6. What does the range() function do when used in a for loop?

• 🟢 A. Generates a sequence of numbers
• 🔵 B. Defines a list
• 🟠 C. Calculates the average
• 🔴 D. Determines the length of a string

Q7. What does the following code print?

for x in range(5, 8):
    print(x)

• 🟢 A. 5 6 7
• 🔵 B. 5 6 7 8
• 🟠 C. 4 5 6 7
• 🔴 D. 5 6 7 8 9

Q8. What does the range(5) function generate?

• 🟢 A. [0, 1, 2, 3, 4, 5]
• 🔵 B. [1, 2, 3, 4, 5]
• 🟠 C. [0, 1, 2, 3, 4]
• 🔴 D. [5, 4, 3, 2, 1, 0]

Q9. Which of these is NOT a valid iterable for a for loop?

• 🟢 A. [1, 2, 3]
• 🔵 B. (1, 2, 3)
• 🟠 C. 123
• 🔴 D. range(3)

Q1. How many times is the print statement executed?

for i in range(3):
    for j in range(2):
        print(f"i = {i}, j = {j}")

• 🟢 A. 3 times
• 🔵 B. 5 times
• 🟠 C. 6 times
• 🔴 D. 9 times

Q2. What will the program output if the number variable is set to 5?

number = 5
if number < 0:
    print("Factorial is not defined for negative numbers.")
    result = None
elif number == 0 or number ==1:
    result = 1
else:
    result = 1
    for i in range(2, number + 1):
        result *= i
if result is not None:
    print("Factorial of", number, "is", result)

• 🟢 A. Factorial is not defined for negative numbers.
• 🔵 B. Factorial of 5 is 5
• 🟠 C. Factorial of 5 is 120
• 🔴 D. Factorial of 5 is 24

Q3. How can you create a nested loop in Python?

• 🟢 A. by using a loop inside another loop with proper indentation
• 🔵 B. by using a loop inside another loop with parentheses
• 🟠 C. by using a nested keyword before the inner loop
• 🔴 D. by using a colon after the outer loop and before the inner loop

Q4. What does this code accomplish?

total = 0
for i in range(1, 6):
    total += i
print(total)

• 🟢 A. It prints numbers from 1 to 5.
• 🔵 B. It calculates the sum of numbers from 1 to 5.
• 🟠 C. It prints the sum of numbers from 1 to 6.
• 🔴 D. It calculates the sum of numbers from 0 to 5.

Q5. What is the output of the following code?

for i in range(3):
    print(i)
else:
    print("Done")

• 🟢 A. 0 1 2
• 🔵 B. 0 1 2 Done
• 🟠 C. Done
• 🔴 D. 3 Done

Q6. How many times will 'Hello' be printed?

for i in range(2, 8, 2):
    print("Hello")

• 🟢 A. 2
• 🔵 B. 3
• 🟠 C. 4
• 🔴 D. 6

Q1. What is the output of this nested loop?

result = []
for i in range(2):
    for j in range(2):
        result.append((i, j))
print(result)

• 🟢 A. [(0, 0), (0, 1)]
• 🔵 B. [(0, 0), (1, 0)]
• 🟠 C. [(0, 0), (0, 1), (1, 0), (1, 1)]
• 🔴 D. [(0, 1), (1, 0)]

Q2. What does this list comprehension equivalent to?

result = [x**2 for x in range(5)]

• 🟢 A. [0, 1, 2, 3, 4]
• 🔵 B. [1, 4, 9, 16, 25]
• 🟠 C. [0, 1, 4, 9, 16]
• 🔴 D. [0, 1, 8, 27, 64]