Q60
The main constituents of pearls are
A.
Calcium Oxide and Ammonium Chloride
B.
Calcium Carbonate and Magnesium Carbonate
AnswerC.
Aragonite and Conchiolin
D.
Ammonium Sulphate and Sodium Carbonate
Answer: Option B
Solution
Answer: Option B
Solution:
The main constituents of pearls are Calcium Carbonate and Magnesium Carbonate.