MHT CET · Chemistry · General Organic Chemistry

Which from following statements is TRUE about \(\mathrm{CH}_3 \mathrm{CH}\left(\mathrm{NH}_2\right) \mathrm{CH}_2 \mathrm{COOH}\) molecule?

A It is an example of amino acids.
B Its IUPAC name is 3 -carboxy-2-amine.
C The amino group is located at \(\mathrm{C}-3\).
D \(-\mathrm{NH}_2\) group is considered as principal functional group for IUPAC naming.

Verified Solution

Answer & Solution

Correct Answer

(C) The amino group is located at \(\mathrm{C}-3\).

Step-by-step Solution

Detailed explanation

The given molecule is not an amino acid. Its IUPAC name is 3-aminobutanoic acid. The amino substituent is located at C-3 on four carbon chain. \(-\mathrm{COOH}\) group is considered as principal functional group for IUPAC naming.

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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