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Zinc gives H2" gas with " H2SO4, and co...

Zinc gives `H_2" gas with " H_2SO_4, and conc. HCl_"` but not with conc. HNO_3, because:

A

`NO_3^-`, ion is reduced in preference to hydronium ion

B

conc. `HNO_3` is a weaker acid than conc. `H_2,SO_4`, and. conc. HCI

C

conc. `HNO_3`, acts as a reducing agent

D

Zinc is more reactive than `H_2`

Text Solution

Verified by Experts

The correct Answer is:
A

`Zn + underset (" Conc.") (H_2SO_4 )to ZnSO_4 + H^(2) uarr`
`Zn + underset ("Conc")(2HCl)to ZnCl_2 + H_2 uarr`
`Zn + underset ("Conc") (4HNO_3) to Zn(NO_3)_2 + 2H_2O`
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