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Which of the following pair of substance...

Which of the following pair of substance will not evolve `H_2` gas

A

iron and aqueous `H_2SO_4`

B

Copper and HCl(aq)

C

Sodium and ethanol

D

iron and steam

Text Solution

Verified by Experts

Since H is a strong base hence it will take` H^+` from `H_2O` to form H_2 and OH hence (b) will be the option.
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