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CGP EDU Academic Team
Published on: August 11, 2026
Metals which will not evolve H 2 gas with dil. HCl are
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Verified by ExpertsThe correct answer is:
A
The metals whose reduction potentials are greater than the reduction potential of Hydrogen do not liberate H 2 gas.
; E° = 0.00 V
Au 3+ + 3 e - 
Au E° = + 1.50 V
Ag + + e - 
Ag E° = + 0.799 V
Cu 2+ + 2 e - 
Cu E° = + 0.34 V
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