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Generally metals react with acids to give salt and hydrogen gas.
Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

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H_{2} {SO}_{4}

HCl

{HNO}_{3}

All of these

answer is C.

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Detailed Solution

Hydrogen gas is not evolved when a metal reacts with nitric acid, it is because

H N O_{3}

is a strong oxidising agent. It oxidizes the

H_{2}

produced to water and it self reduce to any of the Nitrogen oxides.

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