Which of the following is the correct decreasing order of priority for the functional groups ?

Options

A. (1) `-CONH_(2), -CHO, -SO_(3)H, -COOH`
B. (2) `-SO_(3)H, -COOH, -CONH_(2), -CHO`
C. (3) `-COOH, SO_(3)H, -CONH_(2), -CHO`
D. (4) -`CHO, COOH, -SO_(3)H, -CONH_(2)`

Answer

C

Explanation

In polyfunctional compounds, the `-COOH` group always gets the highest priority followed by `-SO_(3)H, -CONH_(2)` and `-CHO:`