For the following four structures I to IV,whi | vedclass

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(B) carbon atom is chiral if it is bonded to four different groups or atoms.Structure $(I)$: $C_2H_5-CH(CH_3)-C_3H_7$. The central carbon is bonded to

Vedclass · Accepted Answer

Only $I$ and $II$ are chiral compounds.

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(B) carbon atom is chiral if it is bonded to four different groups or atoms.Structure $(I)$: $C_2H_5-CH(CH_3)-C_3H_7$. The central carbon is bonded to $-H, -CH_3, -C_2H_5, -C_3H_7$. All four groups are different,so it is chiral.Structure $(II)$: $C_2H_5-CO-CH(CH_3)-C_2H_5$. The carbon atom in the $CH(CH_3)$ group is bonded to $-H, -CH_3, -C_2H_5, -CO-C_2H_5$. All four groups are different,so it is chiral.Structure $(III)$: $CH_3^+$. This is a planar carbocation with three hydrogens,not chiral.Structure $(IV)$: $C_2H_5-CH(CH_3)-C_2H_5$. The central carbon is bonded to $-H, -CH_3, -C_2H_5, -C_2H_5$. Two groups are identical,so it is achiral.Therefore,only $I$ and $II$ are chiral.

For the following four structures $I$ to $IV$,which statement is correct?
$(I)$ $C_2H_5-CH(CH_3)-C_3H_7$
$(II)$ $C_2H_5-CO-CH(CH_3)-C_2H_5$
$(III)$ $CH_3^+$ (Methyl carbocation)
$(IV)$ $C_2H_5-CH(CH_3)-C_2H_5$

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For the following four structures $I$ to $IV$,which statement is correct?$(I)$ $C_2H_5-CH(CH_3)-C_3H_7$$(II)$ $C_2H_5-CO-CH(CH_3)-C_2H_5$$(III)$ $CH_3^+$ (Methyl carbocation)$(IV)$ $C_2H_5-CH(CH_3)-C_2H_5$