KCET · Chemistry · General Organic Chemistry
Which of the following is not a pair of functional isomers?
- A \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}\) and \(\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{OCH}_{3}\)
- B \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\) and \(\mathrm{CH}_{3} \mathrm{OCH}_{3}\)
- C \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{NCH}_{2} \mathrm{COOH}\)
- D \(\mathrm{CH}_{3} \mathrm{COOH}\) and \(\mathrm{HCOOCH}_{3}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}\) and \(\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{OCH}_{3}\)
Step-by-step Solution
Detailed explanation
Functional isomers contain two different functional groups like aldehydes \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\) and ketones \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\)
But, in case of \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}\) and \(\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{OCH}_{3}\) both functional groups are same i.e. ether.
But, in case of \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}\) and \(\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{OCH}_{3}\) both functional groups are same i.e. ether.
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