Which compound corresponds to methylpropene?

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Multiple Choice

Which compound corresponds to methylpropene?

Explanation:
Methylpropene is a branched four‑carbon alkene with a C=C double bond. The name points to a propene skeleton (three carbons) with a methyl group attached, giving 2-methylpropene, which is also written as CH2=C(CH3)2. This structure is the isobutene family and contains the double bond plus the extra methyl substituent. Ethene has only two carbons with a C=C but no methyl group, so it’s just CH2=CH2. Propane and butane are single-bonded alkanes with no C=C, so they don’t match the name methylpropene.

Methylpropene is a branched four‑carbon alkene with a C=C double bond. The name points to a propene skeleton (three carbons) with a methyl group attached, giving 2-methylpropene, which is also written as CH2=C(CH3)2. This structure is the isobutene family and contains the double bond plus the extra methyl substituent.

Ethene has only two carbons with a C=C but no methyl group, so it’s just CH2=CH2. Propane and butane are single-bonded alkanes with no C=C, so they don’t match the name methylpropene.

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