Which one of the following reactions involves disproportionation ?

Options

A. a)`2H_(2)SO_(4)+CUtoCuSO_(4)+2H_(2)O+SO_(2)`
B. b)`As_(2)O_(3)+3H_(2)StoAs_(2)S_(3)+3H_(2)O`
C. c)`2KOH+Cl_(2)toKCl+KOCl+H_(2)O`
D. d)`Ca_(3)P_(2)+6H_(2)Oto3Ca(OH)_(2)+2PH_(3)`

Answer

C

Explanation

The reactions , in which the same element is oxidised as well as reduced , are called disproportionation reactions .

In this reaction , the same element , ie , `Cl_(2)` is oxidised as well as reduced , so it is an example of disproportionation reaction .