MCQ
Ethylene oxide when treated with Grignard reagent yields
- ✓primary alcohol
- Bsecondary alcohol
- Ctertiary alcohol
- Dcyclopropyl alcohol.

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Product of the above reaction is
The order of decreasing reactivities of these alcohols towards substitution with $HBr$ is
$C{H_3} - CH = O + {C_6}{H_5} - CH =O \xrightarrow[\Delta ]{{\mathop O\limits^\Theta H\,\left( {aq} \right)}}\mathop X\limits_{{\text{(}}{{\text{C}}_4}{{\text{H}}_6}{\text{O)}}} + \mathop Y\limits_{{\text{(}}{{\text{C}}_9}{{\text{H}}_8}{\text{O)}}} $