AIPMT 2002 Physics and Chemistry Paper

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Question : 84 of 100

Marks: +1, -0

Zn gives H2 gas with H2SO4&‌HCl but not with HNO3 because :-

Zn act as oxidising agent when react with HNO3
HNO3 is weaker acid then H2SO4&‌HCl
In electrochemical series Zn is above hydrogen
NO3‌Θ is reduced in prefference to hydronium ion

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