Write chromyl chloride test with equation

Chloride radical is detected by the chromyl chloride test. In this test, chromyl chloride gas (orange red color) is produced.
Equation Involved – 4NaCl + K2Cr2O7 + 6H2SO4 → 4NaHSO4 + 2KHSO4 + 3H2O + 2CrO2Cl2