JEE Main 2026 Chemistry question
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
Answer: (2)
Solution
Both statements accurately describe the Griess-Ilosvay test for nitrite detection using diazotization and azo-coupling.