Question

The reaction of $NaOH$ with which of the following is a disproportionation reaction?

• A. $P$
• B. $S$
• C. $C{l}_2$
• D. All of the above

Answer 1

Answer: (D)

All of the above

In a disproportionation reaction, the same species is oxidized and reduced in the same reaction. Thus, when $NaOH$ reacts with $P,S$, or $C{l}_2$, during the reaction $P,S$, or $C{l}_2$ are simultaneously oxidized and reduced.

$NaOH+P\to P{H}_3+Na{H}_{2}P{O}_2$

$NaOH+S\to N{a}_{2}S+N{a}_2{S}_2{O}_3+H_{2}O$

$NaOH+C{l}_2\to NaCl+NaCl{O}_3+H_{2}O$

Hence, option D is correct.