Single Choice

The decreasing order of priority for the following functional groups is: I. $$-COOH$$ II. $$-SO_{3}H$$ III. $$-COOR$$ IV. $$-COCl$$

A$$(IV) > (Ill) > (II) > (I)$$
B$$(I) > (II) > (lll) > (IV)$$
Correct Answer
C$$(II) > (I) > (lll) > (IV)$$
D$$(IV) > (Ill) > (I) > (II)$$

Solution

The decreasing priority of functional groups is $$-COOH> -SO_3H> -COOR> -COCl$$ $$-COOH$$ group is always greater priority than $$-SO_3H, -COOR, -COCl$$. So the answer is $$B$$.

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