3616: Assertion (A) :
Formic acid is a stronger acid than acetic acid.
Reason (R):
Formic acid is an organic acid.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is NOT a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
3617: It takes 11 seconds for the light to reach the earth from moon and 8 minutes from the sun. How much time will it take from the nearest bright star to reach the earth?
(a) 4.5 minutes
(b) 45 minutes
(c) 45 months
(d) 4.3 light years
3618: Alam Khan, one of those who invited Babar to invade India was
(a) An uncle of Ibrahim Lodhi and a pretender to the throne of Delhi
(b) A cousin of Ibrahim Lodhi who was ill-treated and expelled form the country
(c) The father of Dilawar Khan to whom cruel treatment was meted out by Ibrahim Lodi
(d) A high official in Punjab province who was very much discontented with Ibrahim Lodhi's treatment to his tribe.
3619: Which one of the following is not a Harappan site?
(a) Chanhudaro
(b) Kot Diji
(c) Sohgaura
(d) Desalpur
3620: If X = -2, then X3 - X2 - X - 1 is equal to
(a) 1
(b) -3
(c) -11
(d) -15