Question

When a rod of metal A is dipped in an aqueous solution of metal B (concentration of B²⁺ ion being 1 M) at 25°C, the standard electrode potentials are

A²⁺/A = 0.76 volts, B²⁺/B=+0.34 volts, then

(a) A will not dissolve

(b) B will deposit on A

(c) no reaction will occur

(d) water will decompose into H₂&O₂

Answer 1

Correct option  (c) no reaction will occur

Explanation:

The reduction potential of A is more than B. Hence A will not be able to displace B from its solution. Hence no reaction occurs.