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Python if statement (MCQs)

What is the syntax for a simple if statement in Python? [Python Quiz #50] - A) if x == 10: - B) for x in range(10): - C) while x < 10: - D) if (x == 10) then:

What is the output of the following code Python Quiz #16

x = 10
y = 5

if x == y * 2:
    print("True")
else:
    print("False")

- A) True
- B) False
- C) Error
- D) Nothing

Watch this video for the answer: https://youtube.com/shorts/ExDu2lwjd3c?si=VVq47sCNgRWd7l_i

What is the output of the following code? Python Quiz #31

x = 3
y = 5

if x == 3 and y != 5:
    print("True")
else:
    print("False")

- A) True
- B) False
- C) Syntax error
- D) Name error

Watch the video for the answer: https://youtube.com/shorts/7uAgT3_P4Oc?si=evBHSymYx2kVaEEk

What will be the output of the following code? Python Quiz #39
```
x = 10
if  5 < x < 15:
 print("x is between 5 and 15")
else:
 print("x is not between 5 and 15")
```
- A) x is between 5 and 15
- B) x is not between 5 and 15
- C) Error
- D) No output Watch the video for the answer:https://youtu.be/TkmqlDK8oCg
Which of the following correctly fixes the syntax error in the code below? Python Quiz #40

# fixes the error
x = 10
if x == 10
    print("x is 10")

- A) Remove the comment.
- B) Add a colon after `if x == 10`.
- C) Add parentheses around `x == 10`.
- D) Indent the print statement correctly.

Watch the video for the answer: https://youtu.be/3010E1WuHd8

Which of the following correctly represents the syntax of an if statement in Python?
- A) if condition { block of code }
- B) if(condition) { block of code }
- C) if condition: block of code
- D) None
What is the purpose of the else block in an if statement?
- A) To execute a code block when the if condition is True
- B) To execute a code block when the if condition is False
- C) To create an infinite loop
- D) To define a function
What happens when none of the conditions in an if-elif-else chain are True, and there is no else block?
- A) The program raises an error.
- B) The program executes the first if block.
- C) The program executes the last elif block.
- D) The program does nothing and continues to the next statement.
What will be the output of the following code?

x = 10
y = 5
if x < y:
    print("x is greater than y")

- A) "x is greater than y"
- B) "x is less than y"
- C) Nothing will be printed
- D) An error will occur

What happens if none of the conditions in an if-elif chain are True, and there is no else block?
- A) The program raises an error
- B) The program executes the first if block
- C) The program does nothing and continues to the next statement
- D) The program executes the last elif block
What will be the output of the following code?

number = 10
if number % 2 == 0:
    print("Number is even")
else:
    print("Number is odd")

- A) Number is odd
- B) Number is even
- C) Nothing
- D) Error

Which of the following is the correct way to compare if two variables are equal in an if statement?
- A) if x equals 5:
- B) if x == 5:
- C) if x = 5:
- D) if x := 5:
How can you check if a value is NOT equal to 10 in an if statement?
- A) if x != 10:
- B) if x <> 10:
- C) if x =! 10:
- D) if x not 10:
What does the following code snippet do? ```python if x > 0: print(“Positive”) elif x < 0: print(“Negative”) else: print(“Zero”)

    - A) Prints "Positive" if x is greater than 0, "Negative" if x is less than 0, and "Zero" if x is 0.
    - B) Prints "Positive" if x is less than 0, "Negative" if x is greater than 0, and "Zero" if x is 0.
    - C) Prints "Positive" if x is 0, "Negative" if x is greater than 0, and "Zero" if x is less than 0.
    - D) Causes an error because the conditions are conflicting.

11. **What is the correct syntax for an if-else statement?**
   - A) if condition:
            code block
   - B) if condition:
            code block
        else:
            code block
   - C) if condition:
            code block
        elif condition:
            code block
   - D) if condition:
            code block
        else:
            code block
        elif condition:
            code block

12. **What happens if none of the conditions in an if-elif-else block are true?**
    - A) The program terminates
    - B) The else block is executed
    - C) An error occurs
    - D) The program continues without executing any block

14. **What will be the output of the following code?**
   ```python
   num = 7
   if num % 2 == 0:
       print("Even")
   else:
       print("Odd")

- A) Even
- B) Odd
- C) Error
- D) No output

What will be the output of the following code?

score = 85
if score >= 90:
    print("Grade: A")
elif score >= 80:
    print("Grade: B")
elif score >= 70:
    print("Grade: C")
else:
    print("Grade: F")

- A) Grade: A  
- B) Grade: B  
- C) Grade: C  
- D) Grade: F

What is the output of the following code?

x = 5
if x > 10:
    print("Greater than 10")
elif x > 5:
    print("Greater than 5 but not greater than 10")
else:
    print("5 or less")

- A) Greater than 10  
- B) Greater than 5 but not greater than 10  
- C) 5 or less  
- D) No output

Answer: C

Which of the following is true about the elif statement?
- A) elif stands for “else if” and is used to check additional conditions after the if statement
- B) elif is the same as else
- C) elif must be followed by an else statement
- D) You can have multiple elif statements in one block

Answer: A, D

What will be the output of the following code?

y = 20
if y < 20:
    print("Less than 20")
elif y == 20:
    print("Equal to 20")
else:
    print("Greater than 20")

- A) Less than 20  
- B) Equal to 20  
- C) Greater than 20  
- D) None of the above

Answer: B

What will be the output of the following code snippet?

a = 10
b = 5
if a > b:
    if a > 0:
        print("a is positive")
    else:
        print("a is non-positive")
else:
    print("a is less than or equal to b")

- A) a is positive  
- B) a is non-positive  
- C) a is less than or equal to b  
- D) No output

Answer: A

Which of the following statements is false about if-elif-else statements in Python?
- A) elif statements are optional in an if-elif-else construct
- B) An if statement can be followed by multiple elif statements
- C) An else statement is mandatory in an if-elif-else construct
- D) An if statement can exist without elif or else

Answer: C

What will be the output of the following code?

x = 0
if x:
    print("True")
else:
    print("False")

- A) True  
- B) False  
- C) No output  
- D) Error

Answer: B

Truthy and Falsy Values in Python In Python, certain values are considered False when evaluated in a boolean context (like in an if statement). These values include:

None
False
0 (zero of any numeric type, including 0.0)
Empty sequences and collections (e.g., ‘’, (), [], {})
Any object that implements bool or len to return False or 0, respectively

Which of the following expressions can be used in an if condition to check if a number n is between 1 and 100 inclusive?
- A) if n > 1 and n < 100:
- B) if n >= 1 and n <= 100:
- C) if 1 <= n <= 100:
- D) if n == 1 or n == 100:

Answer: B, C

What will be the output of the following code?

z = 7
if z < 5:
    print("Less than 5")
elif z == 10:
    print("Equal to 10")
elif z > 5:
    print("Greater than 5 but not 10")
else:
    print("Something else")

- A) Less than 5  
- B) Equal to 10  
- C) Greater than 5 but not 10  
- D) Something else

Answer: C

What is the purpose of the else statement in an if-elif-else structure?
- A) To check another condition if the previous ones were false
- B) To execute a block of code if none of the previous conditions were true
- C) To execute a block of code if the previous conditions were true
- D) To end the if-elif-else structure

Answer: B

What will be the output of the following code?

x = 10
if x > 5:
    if x == 10:
        print("x is 10")
    else:
        print("x is greater than 5 but not 10")
else:
    print("x is 5 or less")

- A) x is 10  
- B) x is greater than 5 but not 10  
- C) x is 5 or less  
- D) No output

Answer: A

Which of the following is correct syntax for an if-elif-else statement in Python?

if x > y:
print("x is greater")
elif x == y:
print("x is equal to y")
else:
print("x is less")

if x > y:
    print("x is greater")
elif x == y:
    print("x is equal to y")
else:
    print("x is less")

if (x > y):
    print("x is greater")
elif (x == y):
    print("x is equal to y")
else:
    print("x is less")

if x > y:
    print("x is greater")
elif x == y
    print("x is equal to y")
else
    print("x is less")

Answer: B, C

What will be the output of the following code?

a = 3
b = 4
if a > b:
    print("a is greater")
elif a == b:
    print("a and b are equal")
else:
    print("b is greater")

- A) a is greater  
- B) a and b are equal  
- C) b is greater  
- D) No output

Answer: C

Which of the following statements will execute if n = 7?

if n < 5:
    print("n is less than 5")
elif n < 10:
    print("n is less than 10")
else:
    print("n is 10 or more")

- A) n is less than 5  
- B) n is less than 10  
- C) n is 10 or more  
- D) None of the above

Answer: B

Which keyword is used to check an additional condition if the initial if statement is False?
- A) else
- B) elif
- C) elseif
- D) if

Answer: B

What is the result of the following code?

x = 0
if x > 0:
    print("Positive")
elif x == 0:
    print("Zero")
else:
    print("Negative")

- A) Positive  
- B) Zero  
- C) Negative  
- D) No output

Answer: B

How many elif clauses can be included in an if-elif-else statement?
- A) One
- B) Two
- C) Unlimited
- D) None

Answer: C

What will be the output of the following code?

age = 20
if age < 18:
    print("Minor")
elif age >= 18 and age < 65:
    print("Adult")
else:
    print("Senior")

- A) Minor  
- B) Adult  
- C) Senior  
- D) No output

Answer: B