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Chemistry Question on Haloalkanes and Haloarenes

Which of the following can give a Grignard reagent when reacted with magnesium in dry ether?

A

C2H6C_{2}H_{6}

B

C2H5ClC_{2}H_{5}Cl

C

C2H5OHC_{2}H_{5}OH

D

C2H5CNC_{2}H_{5}CN

Answer

C2H5ClC_{2}H_{5}Cl

Explanation

Solution

C2H5ClC _{2} H _{5} Cl can give Grignard reagent when reacted with MgMg in dry ether.
RX+Mg(dry)−>[ Dry ether ]RMgXR X+M g(d r y) {->[\text { Dry ether }]} R M g X
C2H5Cl+Mg−>[ Dry ether ]C2H5MgClethyl magnesium chlorideC_{2} H _{5} Cl + Mg {->[\text { Dry ether }]}\underset{\text{ethyl magnesium chloride}}{C _{2} H _{5} MgCl}