The Newman projection representation of CH_3- | vedclass

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Question

(A) The given compound is $3$-methylpentane $(CH_3-CH_2-CH(CH_3)-CH_2-CH_3)$.Looking along the $C_2-C_3$ bond,the front carbon $(C_2)$ is attached to

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$Me, Et$

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(A) The given compound is $3$-methylpentane $(CH_3-CH_2-CH(CH_3)-CH_2-CH_3)$.Looking along the $C_2-C_3$ bond,the front carbon $(C_2)$ is attached to two $H$ atoms and one $CH_3$ $(Me)$ group.The back carbon $(C_3)$ is attached to one $H$ atom,one $CH_3$ $(Me)$ group,and one $Et$ (ethyl) group.In the provided Newman projection,the front carbon has $H$,$H$,and $Me$ attached.The back carbon has $H$,$X$,and $Y$ attached.Comparing the substituents on the back carbon $(C_3)$,we have $H$,$Me$,and $Et$.Since $H$ is already shown on the back carbon,$X$ and $Y$ must be $Me$ and $Et$.Based on the standard representation of this specific conformer,$X = Me$ and $Y = Et$.

The Newman projection representation of $CH_3-CH_2-CH(CH_3)-CH_2-CH_3$ about the $C_2-C_3$ bond is shown. Then $X$ and $Y$ are respectively:

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