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AIIMS 2018
MCQ (Single Correct Answer)
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-0.33

Assertion (A) $$\mathrm{NaCl}$$ reacts with concentrated $$\mathrm{H}_2 \mathrm{SO}_4$$ to give colourless fumes with pungent smell. But on adding $$\mathrm{MnO}_2$$ the fumes become greenish yellow.

Reason (R) $$\mathrm{MnO}_2$$ oxidises $$\mathrm{HCl}$$ to chlorine gas which is greenish yellow.

A
Both (A) and (R) are true and (R) is the correct explanation of (A).
B
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
C
(A) is true and (R) is false.
D
Both (A) and (R) are false.
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