What kind of reagent would be needed to resolve a racemic amine, such as 2-aminobutane ?
A) the pure optically active amine to serve as a template for crystallization.
B) an achiral carboxylic acid to give a racemic mixture of amine salts.
C) an enantiomerically pure chiral carboxylic acid to give a diastereomeric mixture of amine salts.
D) a racemic chiral carboxylic acid to give a complete mixture of isomeric amine salts.

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane