NCERT Exemplar Chemistry

Question

Assertion: IUPAC name of the compound $ ext{CH}_3- ext{CH}( ext{CH}_3)- ext{O}- ext{CH}_2- ext{CH}_2- ext{CH}_3$ is 2-Ethoxy-2-methylethane.
Reason: In IUPAC nomenclature, ether is regarded as hydrocarbon derivative in which a hydrogen atom is replaced by —OR or —OAr group [where R = alkyl group and Ar = aryl group] A). Both Assertion and Reason are correct and Reason is the correct explanation for Assertion. B). Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion. C). Assertion is a correct statement but Reason is a wrong statement. D). Assertion is a wrong statement but Reason is a correct statement.

Edvaya · Accepted Answer

The correct answer is Assertion is a wrong statement but Reason is a correct statement.. The Assertion is a wrong statement because the correct IUPAC name for $	ext{CH}_3-	ext{CH}(	ext{CH}_3)-	ext{O}-	ext{CH}_2-	ext{CH}_2-	ext{CH}_3$ is 1-Isopropoxypropane or 2-Propoxypropane, based on selecting the longest carbon chain. The Reason is a correct statement as it accurately describes the general IUPAC nomenclature rule for ethers as alkoxy or aryloxy derivatives of hydrocarbons.

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Chemistry > Organic Chemistry > Alcohols Phenols And Ethers

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