General Science – 54

General Science » Exercise – 1

54. The main constituents of pearls are

(a) calcium oxide and ammonium chloride
(b) calcium carbonate and magnesium carbonate
(c) aragonite and conchiolin
(d) ammonium sulphate and sodium carbonate

Answer
Answer : (b)
Explanation
Explanation : No answer description available for this question. Let us discuss.
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