Q. When intimate mixture of potassium dichromate and potassium chloride is heated with cone. $H_{2} S O_{4}$ which of the following is produced in the form of red vapours ?

1890 207 The d-and f-Block Elements Report Error

A

$C r O_{3}$

8%

B

$C r_{2} O_{3}$

27%

C

$C r O_{2} C l_{2}$

61%

D

$C r C l_{3}$

4%

Solution:

See Comprehensive Review