Question

When a mixture of solid sodium chloride,potassium dichromate is heated with concentrated sulphuric acid orange red vapours are formed, then compound formed is :

• A. chromous chloride
• B. chromyl chloride
• C. chromic chloride
• D. none of the above

Answer 1

The correct option is B chromyl chloride

Chromyl chloride test is performed on the salt in solid state. Solid salt is mixed with Solid Potassium Dichromate and Conc. H₂SO₄. If the salt is a chloride, on heating deep red vapors of Chromyl Chloride (CrO₂Cl₂) are evolved.