Which of the following gas is released when sulphur reacts with conc. nitric acid?

N₂O

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NO₂

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N₂O₅

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Solution

The correct option is C
NO₂

Sulphur reacts with concentrated nitric acid to give sulphuric acid, water and nitrogen dioxide gas.

$S + 6 H N O_{3} \to H_{2} S O_{4} + 6 N O_{2} + 2 H_{2} O$

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