Verified Solution • 2025–26 Session
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QAIPM-2002-Ch-2798: NEET 2002 Chemistry - Class 12 AIPM-2002-Ch-2798 Solution: Zn gives \(H_2\) gas with \(H_2SO_4\) and HCl but not with…
Zn gives gas with and HCl but not with because
Multiple Choice Options
- A Zn act as oxidising agent when react with
- B is weaker acid than and HCl
- C In electrochemical series Zn is above hydrogen
- D is reduced in preference to hydronium ion.
Step-by-Step Verified Solution
Zinc is on the top position of hydrogen in
electrochemical series. So Zn displaces H 2
from
dilute H 2 SO 4
and HCl with liberation of H 2
.
Zn + H 2 SO 4 _ ZnSO 4
+ H 2
On the other hand HNO 3
is an oxidising agent.
Hydrogen obtained in this reaction is converted into
H 2 O.
Zn + 2HNO 3 _ Zn(NO 3
) 2
+ 2H
2HNO 3 _ H 2 O + 2NO 2
+ O
2H + O _ H 2 O.