The IUPAC name of this compound is?

3-Ethyl-4,4-dimethylheptane

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1,1-Diethyl-2,2-dimethylpentane

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4,4-Dimethyl-5,5-diethylpentane

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5,5-Diethyl-4,4-dimethylpentane

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Solution

The correct option is A
3-Ethyl-4,4-dimethylheptane

First, check the parent chain.

Now, give numbers such that the more substituted substituent will get the lowest number.

Parent chain
7 carbon $\Rightarrow$ hept (word root)

Single bonds $\Rightarrow$ ane (suffix

$\to$ substituent at $C_{3} a n d C_{4}$ 3-ethyl-4,4-dimethyl(alphabetically)

Therefore, 3-Ethyl-4,4-dimethylheptane

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