Aldehydes and Ketones - Result Question 21
####21. The order of reactivity of phenyl magnesium bromide with the following compounds is
(I)
(II)
(III) (a) (II)
(b) (I)
(c) (II)
(d) All of the above
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Answer:
Correct Answer: 21. (a)
Solution:
- The reactivity of carbonyl compound towards nucleophilic addition of Grignard’s reagent depends on extent of steric hindrance at
-carbon. Greater the steric hindrance smaller the reactivity. Hence, reactivity order is