Question
Pharmacognosy Question on Resinous drugs
The correct rank order of orientation of sulfonation in toluene is:
A
2-methylbenzenesulfonic Acid > 3-methylbenzenesul-fonic acid > 4-methylbenzenesulfonic acid
B
3-methylbenzenesulfonic acid > 2-methylbenzenesul- fonic acid > 4-methylbenzenesulfonic acid
C
3-methylbenzenesulfonic acid > 2-methylbenzenesul-fonic acid > 4-methylbenzenesulfonic acid
D
4-methylbenzenesulfonic acid > 2-methylbenzenesulfonicacid > 3-methylbenzenesulfonic acid
Answer
4-methylbenzenesulfonic acid > 2-methylbenzenesulfonicacid > 3-methylbenzenesulfonic acid
Explanation
Solution
The correct option is (D): 4-methylbenzenesulfonic acid > 2-methylbenzenesulfonicacid > 3-methylbenzenesulfonic acid