Asked: R.A.S./R.T.S. (Pre) 2008medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
मोती मुख्य रूप से बना होता है-
Pearl is mainly composed of-
SELECT CORRECT OPTION:
A
कैल्शियम आक्जेलेट
Calcium oxalate
B
कैल्शियम सल्फेट
Calcium sulphate
C
कैल्शियम कार्बोनेट
Calcium carbonate
Correct
D
कैल्शियम ऑक्साइड
Calcium oxide
Official Solution & Explanation:
Correct Answer: Option C(कैल्शियम कार्बोनेट)
मोती मुख्य रूप से कैल्शियम कार्बोनेट ($CaCO_3$) का बना होता है।
Pearl is predominantly composed of calcium carbonate ($CaCO_3$).
Subject: General Science•Topic: Metals, Minerals, Ores: Properties and Uses•Subtopic: Metals, Minerals, Ores: Properties and Uses
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