MHT CET · Chemistry · General Organic Chemistry

Which from following pairs of compounds exhibits metamerism?

A But-2-ene and But-1-ene
B Methoxymethane and Ethanol
C Ethoxyethane and Methoxypropane
D Butane and 2-Methylpropane

Verified Solution

Answer & Solution

Correct Answer

(C) Ethoxyethane and Methoxypropane

Step-by-step Solution

Detailed explanation

Ethoxyethane \(\left(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\right)\) and methoxypropane \(\left(\mathrm{CH}_3-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3\right)\) have same functional group as ether but have different distribution of carbon atoms attached to etheral oxygen. Thus, both pair of compounds show metamerism.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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