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Which of the following statements are co...

Which of the following statements are correct when a mixture of NaCl and `K_2Cr_2O_7` is generally warmed with conc. `H_2SO_4` ?

A

A deep red vapour is obtained

B

The vapour when passed into NaOH solution gives yellow solution of `Na_2CrO_4.

C

Chlorine gas is evolved

D

Chromyl chloride is formed.

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