KCET2020ChemistryGeneral Organic Chemistry

Which of the following is not a pair of functional isomers?

Options

AC ₂ H ₅ OC ₂ H ₅ and C ₃ H ₇ OCH ₃
BCH ₃ CH ₂ OH and CH ₃ OCH ₃
CCH ₃ CH ₂ NO ₂ and H ₂ NCH ₂ COOH
DCH ₃ COOH and HCOOCH ₃

Correct answer

A. C ₂ H ₅ OC ₂ H ₅ and C ₃ H ₇ OCH ₃

Step-by-step solution

Functional isomers contain two different functional groups like aldehydes CH ₃ CH ₂ CHO and ketones CH ₃ COCH ₃ But, in case of C ₂ H ₅ OC ₂ H ₅ and C ₃ H ₇ OCH ₃ both functional groups are same i.e. ether.

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