Given below are two statements Statement I : Primary aliphatic amines react with HNO 2 to give unstable diazonium salts. Statement II : Primary aromatic amines react with HNO 2 to form diazonium salts which are stable even above 300 K. In the light of the above statements, choose the most appropriate answer from the options given below.

Statement I is correct but Statement II is incorrect.

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

Statement I is incorrect but Statement II is correct.

Organic Compounds Containing Nitrogen PYQ — NEET 2022 · Q108 with Solution

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Correct answer: C

$\bullet$ Primary aliphatic amines react with HNO₂ and give unstable diazonium salt which turns into alcohol

$$R - N{H_2} + HN{O_2}\xrightarrow{} \left[ {R - N_2^ + - C{l^ - }} \right]\xrightarrow{{H_2}O} ROH + {N_2} + HCl$$

$\bullet$ Primary aromatic amines reacts with HNO₂ and give stable diazonium salt which are stable at 273 to 278 K.

$${C_6}{H_5} - N{H_2} + HN{O_2}\xrightarrow{273 - 278\,K} {C_6}{H_5}N_2^ + C{l^ - }$$

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Correct answer: C

$\bullet$ Primary aliphatic amines react with HNO₂ and give unstable diazonium salt which turns into alcohol

$$R - N{H_2} + HN{O_2}\xrightarrow{} \left[ {R - N_2^ + - C{l^ - }} \right]\xrightarrow{{H_2}O} ROH + {N_2} + HCl$$

$\bullet$ Primary aromatic amines reacts with HNO₂ and give stable diazonium salt which are stable at 273 to 278 K.

$${C_6}{H_5} - N{H_2} + HN{O_2}\xrightarrow{273 - 278\,K} {C_6}{H_5}N_2^ + C{l^ - }$$