The IUPAC name of the given compound is

3- Methyl hexane

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2- Ethyl pentane

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4- Ethyl pentane

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4- Methyl hexane

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Solution

The correct option is A
3- Methyl hexane

Let us begin by numbering the longest chain. According to the IUPAC rules of nomenclature the longest chain should be considered as the main chain. No matter which outer carbon we start with, the longest chain is 6 carbons long.

If we start from left to right then the branch will come at 3rd carbon.

If we start from left to right then the branch will come at 4th carbon.

Numbering in the carbon chain should be done in such a way that the carbon chain having the branch gets the lowest number. The IUPAC name of the given compound is 3- Methyl hexane.

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Similar questions

n - hexane $X - \to$ 2 - methyl pentane+ 3 - methyl pentane. The name of the reaction and 'x' is

C H_{3} (C H_{2})_{4} C H_{3} A n h y . A l C l_{3} / H C l - --------- \to C H_{3} - C H - (C H_{2})_{2} - C H_{3} + C H_{3} C H_{2} - C H - C H_{2} - C H_{3}

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C H_{3} 2 - m e t h y l p e n t a n e

C H_{3} 3 - m e t h y l p e n t a n e

2 - m e t h y l p e n t a n e

Nonane is a hydrocarbon which is isomeric with 2-methyl-3-ethyl hexane.

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