Home Chemistry AMINES (Nitrogen Containing Compounds) JEE Main 2026 Given below are two statements: Statement I…
Chemistry AMINES (Nitrogen Containing Compounds) JEE Main 2026 Single Correct MCQ
Published on: August 14, 2026

Given below are two statements:
Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves the use of sulphanilic acid and -naphthylamine reagent.
Statement II: In the above test, sulphanilic acid is diazotized by the acidified nitrite ion, which on further coupling with -naphthylamine forms an azo-dye.
In the light of the above statements, choose the correct answer from the options given below

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is false but Statement II is true
D
Statement I is true but Statement II is false

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Text Solution

Verified by Experts
The correct answer is:
A

The Griss-Ilosvay test for nitrite ion detection involves adding sulphanilic acid and -naphthylamine reagent. Acidified nitrite ions diazotize sulphanilic acid, forming a diazonium salt that undergoes azo coupling with naphthylamine to produce a characteristic red azo-dye. Both statements accurately describe this test and its mechanism, making both statements true.

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