Question

Which of the following statement (s) is (are) correct, when a mixture of NaCl and K₂Cr₂O₇ is gently warmed with conc H₂SO₄?

(a) A deep red vapours is evolved 

(b) The vapours when passed into NaOH solution gives a yellow solution of Na₂CrO₄ 

(c) Chlorine gas is evolved 

(d) Chromyl chloride is formed

Answer 1

The correct option (a) A deep red vapours is evolved

(b) The vapours when passed into NaOH solution gives a yellow solution of Na₂CrO₄ 

(d) Chromyl chloride is formed

Explanation: