General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 58)

General Science

58.

The main constituents of pearls are

calcium oxide and ammonium chloride

calcium carbonate and magnesium carbonate

aragonite and conchiolin

ammonium sulphate and sodium carbonate

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

13 comments Page 2 of 2.

Priyanka said: 8 years ago

I am not understanding what is conchiolin. Please, can anyone tell me?

Anu said: 8 years ago

Pearl is obtained from mollusca Pinctada vulgaris.

Jassie said: 5 years ago

Pearl is a mixture of caco3, mgc03 NH4so4 nacl cao nh4cl conhilion aragonite.

Post your comments here:

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers