WBJEE 2016 Chemistry Solved Paper

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Question : 38 of 40

Marks: +1, -0

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

A deep red vapour is evolved.
The vapour when passed through NaOH solution, gives a yellow solution.
Chlorine gas is also evolved.
Chromyl chloride is formed.

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