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The simplest branched-chain hydrocarbon is


Question

The simplest branched-chain hydrocarbon is

Options

A) ethane

B) ethene

C) propane

D) butane


The correct answer is D.

Explanation:

The compound 2–methylpropane has a branched chain (the carbon atom in the center of the Lewis structure is bonded to three other carbon atoms). It has the same number of carbons and hydrogens as butane but the bonding pattern is completely different. These two molecules are known as geometric isomers because the have the same number of carbons, hydrogens, and electrons but differ in the geometric arrangement and chemical bonding pattern between the atoms.

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Dicussion (1)

  • The compound 2–methylpropane has a branched chain (the carbon atom in the center of the Lewis structure is bonded to three other carbon atoms). It has the same number of carbons and hydrogens as butane but the bonding pattern is completely different. These two molecules are known as geometric isomers because the have the same number of carbons, hydrogens, and electrons but differ in the geometric arrangement and chemical bonding pattern between the atoms.

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