Question

indicate the expected structure of the organic product when ethyl magnesium Bromide is treated with heavy water​

Answer 1

The expected structure of organic product when ethyl magnesium bromide is treated with heavy water is:----

We know heavy water is D2O as heavy hydrogen is deuterium hence heavy water is D2O.

Ethyl magnesium bromide is gignard reagent that is RMgX.

when gignard reagent is treated with H2O that is hydrolysis then it gives corresponding alkanes and RMg(OH)X where hydrogen of alkane and OH in RMg(OH)X comes from water that is H2O.

Now when H2O replaced by D2O then in alkane H is replaced by heavy hydrogen that ia D and h in RMg(OH)X also replaced by D.

So reaction become as

C2H5MgBr+D2O------>C2H5D+Mg(OD)Br

Structure of alkane is tetrahedral as both carbon are sp3 hyberdised.