Which of the following statements is incorrec | vedclass

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(B) $1$. $n$-butane $(CH_3CH_2CH_2CH_3)$ and isobutane $(CH_3CH(CH_3)CH_3)$ have the same molecular formula $(C_4H_{10})$ but different carbon skeleto

Vedclass · Accepted Answer

$n$-butane and isobutane are homologous.

Vedclass · Answer

(B) $1$. $n$-butane $(CH_3CH_2CH_2CH_3)$ and isobutane $(CH_3CH(CH_3)CH_3)$ have the same molecular formula $(C_4H_{10})$ but different carbon skeleton structures,so they are chain isomers. Thus,option $A$ is correct.$2$. Homologues are members of a series having the same functional group and similar chemical properties,differing by a $-CH_2-$ unit. $n$-butane and isobutane are isomers,not homologues. Thus,option $B$ is incorrect.$3$. The $IUPAC$ name for $CHCl_3$ is $trichloromethane$ (or $1, 1, 1-$trichloromethane). Thus,option $C$ is correct.$4$. $n$-pentane and neopentane have the same molecular formula $(C_5H_{12})$ but different carbon chains,so they are chain isomers. Thus,option $D$ is correct.

Which of the following statements is incorrect?

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