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Chemistry · Practical Inorganic chemistry (Qualitative Analysis)

JEE Main 2026 — 28 January, Morning Shift — Question 53

Given below are two statements : one is labelled as Statement I and the other is labelled as Statement II :

Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves the use of sulphanilic acid and α\alpha-naphthylamine reagent.

Statement II: In the above test, sulphanilic acid is diazotized by the acidified nitrite ion, which on further coupling with α\alpha-naphthylamine forms an azo-dye.

In the light of the above statements, choose the correct answer from the options given below

  1. Option A:

    Statement I is false but Statement II is true

  2. Option B:

    Both Statement I and Statement II are true

    Correct
  3. Option C:

    Statement I is true but Statement II is false

  4. Option D:

    Both Statement I and Statement II are false

Answer: B

Step-by-step solution

NO2−+CH3COOH→HNO2+CH3COO−\mathrm{NO}_{2}^{-}+\mathrm{CH}_{3} \mathrm{COOH} \rightarrow \mathrm{HNO}_{2}+\mathrm{CH}_{3} \mathrm{COO}^{-}

Solution figure

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
28 January, Morning Shift
Subject
Chemistry
Chapter
Practical Inorganic chemistry (Qualitative Analysis)
Topic
Other Misc Reactions/ Tests
Given below are two statements : one is labelled as Statement I and… | JEE Main 2026 PYQ with Solution · DhiX AI