Zn gives Hz gas with H2SO4 and HCI bur not with HNO3 because

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Zn acts as an oxidising agent when reacts with HNO3

HNO3 is weaker acid than H2SO4 and HCI

In electrochemical series Zn is above hydrogen

NO3-is reduced in preference to hydronium ion

answer is D.

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Detailed Solution

NO3-is reduced in preference to hydronium ion

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