When a mixture of solid `NaCl` and solid `K_(2)Cr_(2)O_(7)` is heated with concentrated `H_(2)SO_(4)` deep red vapours are obtained.This is due to the formation of:

Options

A. The vapours give a yellow solution with NaOH
B. The vapours contain `CrO_2Cl_2` only
C. The vapours contains `CrO_2Cl_2` and `Cl_2`.
D. The vapours when passed into lead acetate in acetic acid gives a yellow precipitate.

Answer

C

Explanation

The vapours contains `CrO_2Cl_2` and `Cl_2`.