Which of the following compounds is formed when a mixture of K₂Cr₂O₇ and NaCl is heated with conc. H₂SO₄ ?
(a) CrO₂Cl₂
(b) CrCl₃
(c) Cr₂(SO₄)₃
(d) Na₂CrO₄
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(d) Na2CrO4 is formed...
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