Which of the following are invalid conditional statements of Python?

1. IF
2. Test if
3. if-else
4. if-elif
5. if
6. if-elif-else

Which of the following is used to define a block of code (e.g., body of if or body of a loop) in Python ?

1. { }
2. ( )
3. indentation
4. Quotation

What is the output of following code ?

if None :
    print "Up"
else:   
    print "Down"

1. Up
2. Down
3. No output
4. Up Down

What will be the output of following code ?

for i in range(1) : 
    print i

1. 0
2. 1
3. No output
4. Error in code