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Introduction

How many mole...

Question

How many moles of Grignard reagent will be required by one mole of given compound?

A

7

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B

6

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C

8

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D

5

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Solution

The correct option is A 7
Grignard reacts with unsaturated carbonyl compounds so two moles is required for each ester & carbonyl chloride.
Grignard also reacts with acidic $H$ so one mole for $- O H$ and one mole for $- S H$ . Last one mole is required to replace $C l -$ group.
So total 7 moles of Grignard reagent is required.

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