71: Which of the following were the main objectives of the Khilafat movement?
I. To rouse anti-British feelings among the Muslims of India
II. To reform the Muslim society
III. To demand separate electorates and preserve the Khilafat
IV. To save the Ottoman empire and preserve the Khilafat.
Choose the correct answer from the codes given below:
Codes:
(a) I and II
(b) II and III
(c) III and IV
(d) I and IV
72: A bag contains 20 balls, 8 balls are green, 7 are white and 5 are red. What is the minimum number of balls that must be picked up from the bag blind folded (without replacing any of it) to be assured of picking at least one ball of each colour ?
(a) 4
(b) 7
(c) 11
(d) 16
73: Which of the following fertilisers leaves acidic residue?
(a) Ammonium phosphate
(b) Ammonium sulphate
(c) Urea
(d) Sulphate of potash
74: Assertion (A) :
A tennis ball will bounce higher in Calcutta than it would in Shimla.
Reason (R) :
The downward pull due to gravity is less and air is more rarefied in Shimla than in Calcutta.
(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
75: Why does man weigh more at the poles than at the equator?
(a) Because there is no atmosphere at the poles
(b) Because gravitational pull is more at the poles
(c) Because gravitational pull is less at the poles
(d) None of the above