JEE Main 2017 · 8 Apr · Shift 1 · Chemistry Q58

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ChemistrySingle correct+4 / -1Question 58 of 90

The IUPAC name of the following compound is :

Cyclohexane ring with two methyls on one carbon and an ethyl group on the adjacent carbon.

1, 1-Dimethyl-2-ethylcyclohexane

2-Ethyl-1,1-dimethylcyclohexane

1-Ethyl-2,2-dimethylcyclohexane

2, 2-Dimethyl-1-ethylcyclohexane

Answer and worked solution

Official answer: B

The ring is the parent. The locant set {1,1,2} (methyls on C1) beats {1,2,2}, and substituents are listed alphabetically: 2-ethyl-1,1-dimethylcyclohexane.

Topics:IUPAC nomenclature

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JEE Main 2017 · 8 Apr · Shift 1, Chemistry question 58