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Zn gives hydrogen with $H_{2} S O_{4}$ and $H C l$ but not with $H N O_{3}$ because

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Zn acts as oxidizing agent when reacts with $H N O_{3}$

$H N O_{3}$ is weaker acid than $H_{2} S O_{4}$ and $H C l$

Zn is above the hydrogen in electrochemical series

$N O_{3}^{-}$ is reduced in preference to $H^{+}$ ion.

answer is D.

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Detailed Solution

Due to reduction of $N O_{3}^{-}$ in preference to $H^{+}$ ion. $H^{+}$ ion is not reduced to give $H_{2}$ gas.

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