JEE Chemistry 2025 Question with Solution

Given: Four statements classify the shown pairs of organic compounds as metamers, functional isomers, position isomers, and homologous compounds.

Find: Which statements are correct.

From the provided solution analysis:

1. Statement A is correct because the two ketone compounds have the same molecular formula and differ in the distribution of alkyl groups around the functional group, so they are metamers.
2. Statement B is correct because the pair represents compounds with the same molecular formula but different functional groups, so they are functional isomers.
3. Statement C is incorrect. The brief solution note states that the compounds in option C are homologues to each other, not position isomers.
4. Statement D is incorrect because these are only organic molecules and are not isomers; they are not a homologous pair.

Therefore, the correct statements are A and B only.

The correct option is C.

Given: The task is to check whether each labelled pair has been identified correctly.

Find: The correct combination of statements.

The longer explanation on the page states:

• A: correct as metamers.
• B: correct as functional isomers.
• C: the page text describes them as position isomers, but the shorter solution note says they are homologues. Since the final answer on the page concludes A and B only, statement C is treated as incorrect.
• D: incorrect because the pair does not represent homologues in the intended sense.

Hence, the defensible conclusion from the solution is that only A and B are correct.

Therefore, the correct option is C.