Concept:
A benzylic alcohol is one in which the \(-OH\) group is attached to a carbon directly bonded to a benzene ring.
Primary benzylic alcohol means:
• The \(-OH\) is on a primary carbon (attached to only one carbon)
• That carbon is directly attached to benzene ring Step 1: Analyze options Option (A):
OH on secondary carbon → Secondary benzylic alcohol $\times$
Option (B):
OH on tertiary carbon → Tertiary benzylic alcohol $\times$
Option (C):
Structure is \(\text{C}_6\text{H}_5-\text{CH}_2\text{OH}\)
• OH on primary carbon \checkmark
• Carbon directly attached to benzene \checkmark
→ Primary benzylic alcohol \checkmark
Option (D):
OH on secondary/branched carbon → Not primary $\times$
Conclusion:
Only option (C) is a primary benzylic alcohol.
Final Answer: Option (C)
