Question

$C{u}^{+}$ ion is unstable in aqueous solution because _______________.

• A. it undergoes oxidation
• B. it undergoes reduction
• C. it undergoes disproportination
• D. it forms complex

Answer 1

The correct option is C it undergoes disproportination

$C{u}^{+}$ ion is unstable in aqueous solution because it undergoes disproportionation. It gets oxidised into cuprous ion and reduced into copper metal.

The disproportionation reaction is as follows:

$2C{u}^{+}\to C{u}^{2+}+Cu$

Hence, option C is the correct answer.