Q. Ethylene oxide when treated with Grignard reagent yields :
A) secondary alcohol
B) tertiary alcohol
C) cyclopropyl alcohol
D) primary alcohol
Explanation
[Solution from source] The carbanion of RMgX attacks a ring carbon of ethylene oxide and opens the strained ring, giving RCH₂CH₂OMgX. Hydrolysis yields RCH₂CH₂OH, a primary alcohol with two more carbons than R. Secondary and tertiary alcohols come from aldehydes and ketones with Grignard reagents. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.