1696: Which of the following pairs of substances can be completely separated by sublimation ?

(a) Sand and iodine

(b) Ammonium chloride and iodine

(c) Sand and sulphur

(d) Salt and sulphur
1697: The Function of heavy water in a nuclear reactor is to

(a) Stop the nuclear reaction

(b) Slow down the speed of neutrons

(c) Cool down the reactor

(d) Increase the speed of neutrons
1698: During the Indian Freedom Struggle, who of the following raised an army called 'Free Indian Legion' ?

(a) V. D. Savarkar

(b) Rashbehari Bose

(c) Lala Hardayal

(d) Subhas Chandra Bose
1699: The Ravva offshore block, with great potential for oil, is located in

(a) Krishna-Godavari basin
(b) Cauvery basin
(c) Mahanadi basin
(d) Palar-Pennar basin
1700: Which one of the following is the correct sequence of the states (labelled 1, 2, 3 and 4) of India shown on the map in descending order in terms of their available ground water resources for irrigation ?


(a) 3, 4, 1, 2
(b) 3, 4, 2, 1
(c) 4, 3, 1, 2
(d) 4, 3, 2, 1