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Question

An action of MnO2 and concentrated sulphuric acid gives a strong pungent odour gas. This is used to test chloride anion.

A
True
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B
False
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Solution

The correct option is A True
Reaction involved is:
MnO2+2Cl+2H2SO4MnSO4+Cl2+SO24+2H2O
Chlorine gas can be recognized by its pungent, irritating odor, which is like the odor of bleach.
The statement is true.

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