The functional groups that are responsible for the ion-exchange property of cation and anion exchange resins, respectively, are :
Question:

The functional groups that are responsible for the ion-exchange property of cation and anion exchange resins, respectively, are :

1. $-\mathrm{SO}_{3} \mathrm{H}$ and $-\mathrm{NH}_{2}$

2. $-\mathrm{SO}_{3} \mathrm{H}$ and $-\mathrm{COOH}$

3. $-\mathrm{NH}_{2}$ and $-\mathrm{COOH}$

4. $-\mathrm{NH}_{2}$ and $-\mathrm{SO}_{3} \mathrm{H}$

Correct Option: 1

Solution:

Cation exchanger contains $-\mathrm{SO}_{3} \mathrm{H}$ or $-\mathrm{COOH}$ groups while anion exchanger contains basic groups like $-\mathrm{NH}_{2}$.