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Chemistry · PYQ NEET UG 2022
हिन्दीGiven below are two statements: Statement I: Primary aliphatic amines react with \( \text{HNO}_2 \) to give unstable diazonium salts. Statement II: Primary aromatic amines react with \( \text{HNO}_2 \) to form diazonium salts which are stable even above \( 300\text{ K} \). In the light of the above statements, choose the most appropriate answer from the options given below:
Correct answer · Option 1
Statement I is correct but Statement II is incorrect
Explanation
Primary aliphatic amines react with \( \text{HNO}_2 \) to form unstable aliphatic diazonium salts which immediately decompose to yield nitrogen gas. Primary aromatic amines react with \( \text{HNO}_2 \) at \( 273-278\text{ K} \) to form stable areenediazonium salts which decompose above \( 278\text{ K} \) (not stable above \( 300\text{ K} \)). Thus, Statement I is correct and Statement II is incorrect.
