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Question

IUPAC name of the following compound:

CH3−CH2−C|H−CH2CH3CH2−C|HCH3−CH2−CH3

A
3-Ethyl-5-methylheptane
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B
5-Ethyl-3-methylheptane
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C
1,1-Diethyl-3-methylpentane
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D
3-Methyl-5,5-diethylpentane
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Solution

The correct option is A 3-Ethyl-5-methylheptane

The given structure formula can be written as:

As per rule numbering will start from the end, giving the lowest number to an ethyl group.

Thus we have,Ethyl(C2H5) is at number 3 , methyl(CH3) is at number 5, with a total 7 C in the chain giving heptane.

Thus, its IUPAC will be:

3Ethyl5methylheptane.

Thus option A is correct.
1499124_927090_ans_d32169975f3143dfbd1015b927dfc7e7.jpg

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