An organic compound (C8H10O2) rotates plane-polarized light. It produces pink color with neutral FeCl3 solution. What is the total number of all the possible isomers for this compound?
Answer: 6
Solution
Given:
Molecular formula: C8H10O2
Gives FeCl3 test → contains phenolic OH
Optically active → contains a chiral center
The compound must be a phenol derivative with a chiral carbon.