JEE Main 2026 Chemistry question
A paper dipped in a dil. H₂SO₄ solution of 'X' upon treatment with SO₂ gas turns into green. The compound 'X' is:
Answer: (D)
Solution
SO₂ reduces orange dichromate to green Cr³⁺, the classic test for K₂Cr₂O₇.
A paper dipped in a dil. H₂SO₄ solution of 'X' upon treatment with SO₂ gas turns into green. The compound 'X' is:
SO₂ reduces orange dichromate to green Cr³⁺, the classic test for K₂Cr₂O₇.