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Hydrogen is not obtained when zinc react...

Hydrogen is not obtained when zinc reacts with

A

cold water

B

Hot NaOH solution

C

Conc. Sulphuric acid

D

Dilute HCl

Text Solution

Verified by Experts

The correct Answer is:
A,B,D
`Zn + H_(2)O rarr Zn(OH)_(2) + H_(2)`
`Zn + NaOH rarr Na_(2)ZnO_(2) + H_(2)`
`Zn + HCl rarr ZnCl_(2) + H_(2)`
`Zn + "conc". H_(2)SO_(4) rarr ZnSO_(4) + SO_(2) + H_(2)O`
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