Asked: U.P.P.C.S. (Pre) 1993medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
चूना पत्थर का रासायनिक नाम है-
The chemical name of limestone is-
SELECT CORRECT OPTION:
A
कैल्शियम कार्बोनेट
Calcium carbonate
Correct
B
मैग्नेशियम क्लोराइड
Magnesium chloride
C
सोडियम क्लोराइड
Sodium chloride
D
सोडियम सल्फाइड
Sodium sulphide
Official Solution & Explanation:
Correct Answer: Option A(कैल्शियम कार्बोनेट)
चूना पत्थर (Limestone) एक अवसादी चट्टान है जिसका रासायनिक नाम कैल्शियम कार्बोनेट ($CaCO_3$) है।
The chemical name of limestone is 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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