Question

Assertion :Amino acids are called $\alpha$-amino acids. Reason: Amino acids are organic compounds containing an amino group and an acidic group as substituents on the $\alpha$-carbon.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Amino acids are organic acids (with carboxylic group - COOH) having amino group $(-N{H}_2)$ generally attached to $\alpha$- carbon next to the carboxylic group. Hence they are called $\alpha$-amino acids. The $\alpha$- carbon also bears a variable hydrocarbon or alkyl group R and hydrogen. Amino acids are therefore,substituted methanes where the four substituent group occupy the four valency positions. These are hydrogen carboxyl group, amino group and variable group designated as R group.

So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.