Which of the following is a pair of metamers?

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(A) Metamerism arises due to the difference in the nature of alkyl groups attached to the same polyvalent functional group.$A$: Pentan$-2-$one $(CH_3-

Vedclass · Accepted Answer

Pentan$-2-$one and Pentan$-3-$one

Vedclass · Answer

(A) Metamerism arises due to the difference in the nature of alkyl groups attached to the same polyvalent functional group.$A$: Pentan$-2-$one $(CH_3-CO-CH_2-CH_2-CH_3)$ and Pentan$-3-$one $(CH_3-CH_2-CO-CH_2-CH_3)$. Here,the ketone group is the same,but the alkyl groups attached to it are different ($CH_3, C_3H_7$ vs $C_2H_5, C_2H_5$). Thus,they are metamers.$B$: These are functional isomers (ester vs ester,but different connectivity).$C$: These are positional isomers.$D$: These are positional isomers.Therefore,the correct pair of metamers is $A$.

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Identify the pairs of compounds that represent position isomerism:
$(I)$ $CH_3-CH_2-CH_2-CH_2-OH$
$(II)$ $CH_3-CH_2-CH(OH)-CH_3$
$(III)$ $CH_3-C(CH_3)(OH)-CH_3$
$(IV)$ $CH_3-CH(CH_3)-CH_2-OH$
$(V)$ $CH_3-CH_2-O-CH_2-CH_3$
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$(VII)$ $CH_3-O-CH(CH_3)-CH_3$

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