Choose the correct statement(s) among the fol | vedclass

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(B, D) Option $A$: The given structures are $cis$ and $trans$ isomers of $but-2-ene$, which are diastereomers, not enantiomers. Thus, this is false.Op

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$CH_3-CH=NOH$ shows geometrical isomerism.

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(B, D) Option $A$: The given structures are $cis$ and $trans$ isomers of $but-2-ene$, which are diastereomers, not enantiomers. Thus, this is false.Option $B$: The reaction of $CH_3CHO$ with $HCN$ produces a cyanohydrin. Since the carbonyl carbon is $sp^2$ hybridized (planar), the cyanide ion can attack from either side with equal probability, resulting in a racemic mixture of the cyanohydrin. Thus, this is true.Option $C$: By assigning $R/S$ configurations to the two Fischer projections of $butan-2-ol$, both are found to have the same configuration (e.g.,$R$). Therefore, they represent the same molecule and are not enantiomers. Thus, this is false.Option $D$: $CH_3-CH=NOH$ (acetaldoxime) exhibits geometrical isomerism due to the restricted rotation around the $C=N$ bond and the presence of a lone pair on the nitrogen atom, leading to $syn$ and $anti$ (or $cis$ and $trans$) isomers. Thus, this is true.

Choose the correct statement$(s)$ among the following.

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