Which of the following statements must be true for two pure chiral isomers ?
A) they must be enantiomers
B) they must be diastereomers
C) they must be stereoisomers
D) they must be optically active

'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