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The purpose of the saturated aqueous ammonium chloride is to: A extract the inor

ID: 825542 • Letter: T

Question


The purpose of the saturated aqueous ammonium chloride is to: A extract the inorganic impurities
B increase the solubility of the product in the aqueous layer during extraction
C hydrolyze the alkoxymagnesium bromide species produced upon addition of Grignard reagent to a ketone
D convert poorly soluble magnesium hydroxide byproduct into a more water soluble magnesium chloride
E both c) and d) are correct
The purpose of the saturated aqueous ammonium chloride is to: A extract the inorganic impurities
B increase the solubility of the product in the aqueous layer during extraction
C hydrolyze the alkoxymagnesium bromide species produced upon addition of Grignard reagent to a ketone
D convert poorly soluble magnesium hydroxide byproduct into a more water soluble magnesium chloride
E both c) and d) are correct

Explanation / Answer

E both c) and d) are correct

Reason:

Once reaction is over, the products will be in the form of R2O-Mg+.

So proton source is needed to convert this salt to R2OH. NH4Cl is a mild acidic salt so, it can donate the proton.

Another reason is clear as given in option d.