Chemistry

Problem

Which of the following statement(s) is/are correct when a solid mixture of

\text{NaCl}

and

\text{K}_2\text{Cr}_2\text{O}_7

is gently warmed with conc.

\text{H}_2\text{SO}_4

? a. A deep red vapour is evolved b. The vapour when passed into

\text{NaOH}

solution gives a yellow solution of

\text{Na}_2\text{CrO}_4

c. Chlorine gas is evolved d. Chromyl chloride is formed