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Reacttion between the following pairs wi...

Reacttion between the following pairs will produce `H_(2)` except

A

`Na + ` ethyl alcohol

B

Fe + steam

C

`Fe + H_2SO_4 (aq.)`

D

`Cu + HCl_((aq.))`

Text Solution

Verified by Experts

The correct Answer is:
D
`Cu + HCl to ` no reaction
Copper is less reactive than hydrogen. Therefore it is unable to displace hydrogen from acid.
`E_(Cu)^@ =+ 0.34 and E_H^@ = 0.00`
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