2226: Which one of the following is used as an anti-freeze for the automobile engines?
(a) Propyl alcohol
(b) Ethanol
(c) Methanol
(d) Ethylene glycol
2227: When three coins are tossed together the probability that all coins have the same face up is
(a) 1/3
(b) 1/6
(c) 1/8
(d) None of these
2228: The square root of the cube of this number is the cube of its square root. It is not 1 and it is less than 6. What is it ?
(a) 2
(b) 3
(c) 4
(d) 5
2229: Which one of the following is useful for biological control of pests?
(a) Honey bees and locusts
(b) Scorpions and spiders
(c) Wasps and birds
(d) Parrots and kites
2230: Sepoy mutiny of 1857 failed due to the:
(a) Lack of effective organisation
(b) Lack of unity of purpose
(c) Lack of unified system of leadership
(d) All of the above