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Q.
Which of the following is not isomeric with diethyl ether?
CMC MedicalCMC Medical 2010
Solution:
Butan-2-one $ C{{H}_{3}}-\overset{O}{\mathop{\overset{\mathbf{||}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}({{C}_{6}}{{H}_{8}}O) $ is not isomeric with diethyl ether $ C{{H}_{3}}C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}{{({{C}_{4}}{{H}_{10}}O)}_{3}}, $ because both are differing in molecular formula.