MCQ
Which of the following molecule has intramolecular $H$ -bonding ?
- ✓Orth-nitrophenol
- BOrtho-boric acid
- CBoth $(A)$ & $(B)$
- DNone of these

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Assertion $(A)$ : $\alpha$-halocarboxylic acid on reaction with dil. $NH _3$ gives good yield of $\alpha$-amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.
Reason $(R):$ Amino acids exist in zwitter ion form in aqueous medium.
In the light of the above statements, choose the correct answer from the options given below :

here $‘X’$ is :