KCET2009Chemistryd and f Block Elements
The incorrect statement in respect of chromyl chloride test is
Options
- Aformation of red vapours
- Bformation of lead chromate
- Cformation of chromyl chloride
- Dliberation of chlorine
Correct answer
D. liberation of chlorine
Step-by-step solution
Chromyl chloride test is used for Cl ⁻ ions. Chlorine is not liberated in this test. CrO ₂ Cl ₂+4 NaOH 2 NaCl + Na ₂ CrO ₄+2 H ₂ O Na ₂ CrO ₄+ ( CH ₃ COO )₂ ~Pb 2 CH ₃ COONa + lead chromate PbCrO ₄