3701: A small pouch containing silica gel is often found in bottles of medicine in tablet or powder form because silica gel

(a) kills bacteria

(b) kills germs and spores

(c) absorbs moisture

(d) absorbs all gases present inside the bottle
3702: The main constituents of pearl are

(a) calcium carbonate and magnesium carbonate

(b) aragonite and conchiolin

(c) ammonium sulphate and sodium carbonate

(d) calcium oxide and ammonium chloride
3703: The meeting of Indian and British political leaders during 1930-32 in London has often been referred to as the First. Second and Third Round Table Conferences. It would be incorrect to refer to them as such because

(a) the Indian National Congress did not take part in two of them

(b) Indian parties other than the Indian National Congress participating in the Conference represented sectional interests and not the whole of India

(c) the British Labour Party had withdrawn from the Conference, thereby making the proceedings of the Conference partisan

(d) it was an instance of Conference held in three sessions and not that of three separate conferences
3704: In a dry cell (battery), which of the following are used as electrolytes?

(a) Ammonium chloride and Zinc chloride

(b) Sodium chloride and Calcium chloride

(c) Magnesium chloride and Zinc chloride

(d) Ammonium chloride and Calcium chloride
3705: Who of the following is the author of the book "The Audacity of Hope"?

(a) Bill Clinton
(b) Al Gore
(c) Barack Obama
(d) Hillary Clinton