1721: Assertion (A) :
Synthetic detergents can lather well in hard water.
Reason (R) :
Synthetic detergents form soluble calcium and magnesium salts with hard water.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually 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
1722: Who among the following is Chile's First woman President ?
(a) M. Bachelet
(b) E. Morales
(c) A. Garcia
(d) D. Ortege
1723: Who among the following was the first Bhakti saint to use Hindi for the propagation of his message ?
(a) Dadu
(b) Kabir
(c) Ramananda
(d) Tulsidas
1724: Which one of the following National Parks has a climate that varies from tropical to subtropical, temperate and arctic?
(a) Khangchendzonga National Park
(b) Nandadevi National Park
(c) Neora Valley National Park
(d) Namdapha National Park
1725: A cube with all the sides painted was divided into small cubes of equal measurement. The side of a small cube is exactly one fourth as that of the big cube. Therefore, the number of small cubes with only one side painted is:
(a) 64
(b) 36
(c) 24
(d) 12