Identify the correct IUPAC name of the hydroc | vedclass

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(C) The molar mass of $72 	ext{ g mol}^{-1}$ corresponds to the molecular formula $C_5H_{12}$ (pentane isomers).Let us analyze the number of primary

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$2-$Methylbutane

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(C) The molar mass of $72 	ext{ g mol}^{-1}$ corresponds to the molecular formula $C_5H_{12}$ (pentane isomers).Let us analyze the number of primary carbon atoms in the isomers of $C_5H_{12}$:$1$. $n$-pentane $(CH_3-CH_2-CH_2-CH_2-CH_3)$: It has two primary carbon atoms.$2$. $2$-Methylbutane $(CH_3-CH(CH_3)-CH_2-CH_3)$: It has three primary carbon atoms.$3$. $2,2$-Dimethylpropane $(C(CH_3)_4)$: It has four primary carbon atoms.Therefore, the hydrocarbon $(x)$ with three primary carbon atoms is $2$-Methylbutane.

Identify the correct $IUPAC$ name of the hydrocarbon $(x)$ containing three primary carbon atoms and with a molar mass of $72 \text{ g mol}^{-1}$.

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