Question

Write the molecular formula of hexane. Write the names of its isomers and
structural formulae.
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Answer 1

Answer:

Hexane is an alkane consisting of six carbon atoms with a chemical formula C6H14.

Explanation:

Hexane has five isomers:

• Hexane, CH3CH2CH2CH2CH2CH3, a straight chain of six carbon atoms.
• 2-Methylpentane (Isohexane), CH3CH(CH3)CH2CH2CH3, a five-carbon chain with one methyl branch on the second.
• 3-Methylpentane, CH3CH2CH(CH3)CH2CH3, a five-carbon chain with one methyl branch on the third.
• 2,3-Dimethylbutane, CH3CH(CH3)CH(CH3)CH3, a four-carbon chain with one methyl branch on the second and third.
• 2,2-Dimethylbutane (neohexane), CH3C(CH3)2CH2CH3, a four-carbon chain with two methyl branches on the second.