Question

Choose the correct answer.

A reaction of a type $\mathrm{AB}+\mathrm{CD}\to \mathrm{AD}+\mathrm{CB}$ involves ___________

• A. No chemical change
• B. decomposition of AB and CD
• C. exchange of ion AB and CD
• D. Combination AB and CD

Answer 1

The correct option is C

exchange of ion AB and CD

Explanation for the correct answer-

Option (c) exchange of ion AB and CD

• A reaction of a type $\mathrm{AB}+\mathrm{CD}\to \mathrm{AD}+\mathrm{CB}$ involves the exchange of ion A with D and ion B with C. This reaction is called a double displacement reaction.

Explanation for the incorrect answer-

Option (a) No chemical change

There is a chemical change in reaction.

Option (b) decomposition of AB and CD

AB and CD do not decompose.

Option (d) Combination AB and CD

There is no combination of AB and CD

Therefore,option(c) is the correct answer.