In which reaction is a racemic mixture not ob | vedclass

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(D) In reaction $(d)$,the product formed is $CH_3-C(OH)(CN)-CH_3$ ($2$-hydroxy$-2-$methylpropanenitrile).Since the central carbon atom is attached to

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$CH_3-C(=O)-CH_3 + HCN 	o$

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(D) In reaction $(d)$,the product formed is $CH_3-C(OH)(CN)-CH_3$ ($2$-hydroxy$-2-$methylpropanenitrile).Since the central carbon atom is attached to two identical methyl $(-CH_3)$ groups,it is not a chiral center.Therefore,the product is achiral and cannot exist as a racemic mixture.In options $(a)$,$(b)$,and $(c)$,the products contain at least one chiral carbon atom and are formed as racemic mixtures.

In which reaction is a racemic mixture not obtained?

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