Which of the following compounds can exist as | vedclass

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(B) racemic mixture is an equimolar mixture of two enantiomers. For a compound to exist as a racemic mixture,it must possess at least one chiral cente

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$CH_3CH(OH)COOH$

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(B) racemic mixture is an equimolar mixture of two enantiomers. For a compound to exist as a racemic mixture,it must possess at least one chiral center (an asymmetric carbon atom bonded to four different groups).$1$. $CH_3CH_2CH(OH)CH_2CH_3$ (Pentan$-3-$ol): The central carbon is bonded to two identical ethyl groups $(-CH_2CH_3)$,so it is achiral.$2$. $CH_3CH(OH)COOH$ (Lactic acid): The central carbon is bonded to $-H$,$-OH$,$-CH_3$,and $-COOH$. Since all four groups are different,it is chiral and can exist as a racemic mixture.$3$. $CH_3CH_2NHCH_2CH_3$ (Diethylamine): The nitrogen is bonded to two identical ethyl groups,making it achiral.$4$. $CH_3CH_2CHDCl$ ($1$-chloro$-1-$deuteropropane): While this is chiral,lactic acid is the standard textbook example for a simple racemic mixture.

Which of the following compounds can exist as a racemic mixture?

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