Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Determine range of E° values for this reaction 
+ 2e – ⎯→ X(s) for given conditions :
A
If the metal X dissolve in HNO 3 but not in HCl it can displace Ag + ion but not Cu 2+ ion.
B
If the metal X in HCl acid producing H 2 (g) but does not displace either Zn 2+ or Fe 2+ . Given : 
, 
, 
, 
, 
, , , ,
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
0.34 < E° < 0.8 ; –0.44 < E° < 0
Sol. Metal should below hydrogen and Cu 2+ but should above Ag + in series.
Metal should above hydrogen but should below from Zn 2+ and Fe 2+ both.
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