Zn gives H 2 gas with H 2 SO 4 and HCl but not with HNO 3 because of:

Chemistry · NEET · NTA Exams — Redox Reactions

1. Zn acts as an oxidizing agent when reacting with HNO₃
2. HNO₃ is a weaker acid than H₂SO₄ and HCl
3. In electrochemical series Zn is above hydrogen
4.  \(\mathrm{NO}_{3}^{-}\) is reduced in preference to hydronium ion

Answer

(D) NO _ 3 ^ - is reduced in preference to hydronium ion

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