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What is the primary product when carbon is treated with concentrated sulfuric acid?

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in Chemistry – Class 12 by (188k points)
What is the primary product when carbon is treated with concentrated sulfuric acid?

(a) Carbon dioxide

(b) Carbon monoxide

(c) Carbon sulfate

(d) Carbon sulfide

The question was asked during a job interview.

This intriguing question originated from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12

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Correct option is (a) Carbon dioxide

Easy explanation: Since sulfuric acid is a very strong oxidant, it oxidizes carbon to carbon dioxide. With excess of oxygen available from sulfuric acid and water, carbon monoxide is rarely formed. Carbon sulfate does not exist and carbon sulfide formed as a reaction between carbon and sulfur.

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