NumberJoker7628 NumberJoker7628

29-01-2024
Chemistry

contestada

When a mixture of solid NaCl and solid K₂Cr₂O₇ is heated with concentrated H₂SO₄, orange-red vapours are produced. What is the compound responsible for the orange-red vapours?
1) Na₂CrO₄
2) Cr2(SO₄)3
3) K₂SO₄
4) H₂CrO₄

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