Question

The exchange of salt between zinc and copper is an example of ______________

(a) combination

(b) decomposition

(c) disproportionation

(d) displacement

I had been asked this question in a job interview.

This intriguing question comes from Redox Reactions and Electrode Processes topic in chapter Redox Reactions of Chemistry – Class 11

Answer 1

Right option is (d) displacement

The best explanation: An ion in a compound is replaced by an ion of other element is a sort of displacement reaction. Here the ions are salts, the exchange of salts between zinc and copper is an example of a displacement reaction.