CBSE Python Question Bank on if else

CBSE Python Question Bank – ( 2 Marks Problems on if else):

1)What is the output of following code ?          

if(4+5==10):
    print("True")
else:
    print("False")
print("True")

Ans. False
          True  

2)What is the output of the following code

if a=1 and a =4
if(a==0):
    print("zero")
if(a==1):
    print("one")
else :
   print("a > 1")

Ans.

if a =1 >>> one
if a=4 >>> a  > 1

3)Under  what conditions will this code fragment print ”water”

if temp < 32:
    print("ice:")
elif temp < 212:
        print("water")
else:
        print("steam")

Ans. if temp greater than 32 and less than 212 it will print water           

4)What is the output produced by the following code?

x=1
if x>3 :
    if x>4:
        print("a", end='')
    else:
        print('b',end=' ')
elif x < 2:
    if(x != 0):
        print("c", end=' ')
print("d")

Ans.  c d                              

5)What is the error in following code ? Correct the code?

weather='raining'
if weather = "sunny":
    print("wear sunblock")
elif weather="snow":
    print("going skiing")
else:
    print(weather)

Ans.

weather='raining'
if weather == "sunny":
    print("wear sunblock")
elif weather=="snow":
    print("going skiing")
else:
    print(weather)
 
>>>raining 

6)What is the error in following code ? Correct the code?

n=2
if n == 0
    print("zero")
elif : n==1
    print("one")
elif n==2:
    print("two")
else   n==3:
    print("three")

Ans.

n=2
if n == 0:
    print("zero")
elif  n==1:
    print("one")
elif n==2:
    print("two")
else:
    print("three")

7)Which are two types of else clauses in Python, define them?

Ans.

The two types of python else clauses are:     

else in an if statement- the else clause of an if statement is executed when the condition of the if statement results into false

else in a loop statement- The else clause of a loop is executed when the loop is terminating normally. i.e. when its test- condition has gone false for a while loop or when the for loop has executed for the last value in sequence  

8)Write a program to check if the number is buzz nos or not (BUZZ nos are numbers which are divisible by 7 or end with 7)

Ans.   

n=int(input("Enter a number:"))
if(n % 7 == 0 or n % 10 == 7):
    print (("It’s a BUZZ no"))
else:
     print ("Not a BUZZ no") 

9)Write a program to check if the character is a vowel or not?

Ans. 

ch=input("Enter a character:")
if ch in "aeiouAEIOU":
    print("It’s a vowel")
else:
     print ("Not a vowel") 

10)Predict the output of the program.

a = 10
if 5 < a < 15 :
          print (a / 2)
else:
         print (a / 5) 

Ans .    >>>5.0