The correct order of reactivity of $P h M g B r$ with following compounds will be:
$(1) . (C_{6} H_{5})_{2} C O, (2) . C H_{3} - C H = O, (3) . (C H_{3})_{2} C = O$

1 > 2 > 3

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2 > 3 > 1

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3 > 2 > 1

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1 > 3 > 2

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Solution

The correct option is B $2 > 3 > 1$
As the positive charge decreases and steric hinderance increases on carbonyl group, the rate of nucleophilic addition reaction decreases.

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Similar questions

{(C_{6} H_{5})}_{2} C O

{C H}_{3} - C H = O

{({C H}_{3})}_{2} C = O

(1) C H_{3} C H_{2} C H_{2} C H_{2} O H

(2) C H_{3} C H_{2} C H_{2} C H O

(3) C H_{3} C H_{2} C H_{2} C O O H

C H_{3} C H_{2} C H_{2} C H_{2} O H

C H_{3} C H_{2} C H_{2} C H O

C H_{3} C H_{2} C H_{2} C O O H

Identify the correct order of boiling points of the following compounds.

C H_{3} (C H_{2})_{2} C H_{2} O H

C H_{3} (C H_{2})_{2} C H O

C H_{3} (C H_{2})_{2} C O O H

N a N H_{2}

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