MCQ
Which of the following statement is correct about $A$ and $B$ ?


- ✓$A$ and $B$ are mixture of diastereomers
- B$A$ and $B$ are mixture of enantiomers
- C$A$ and $B$ are optically active
- D$B$ is racemic mixture

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The $\%$ yield for reaction $I$ is $60 \%$ and that of reaction II is $50 \%$. The overall yield of the complete reaction is $..........\%$ [nearest integer]
