MCQOPTIONS
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| 1. |
Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride, gives brown-red vapours of: |
| A. | \[Cr{{O}_{3}}\] |
| B. | \[CrC{{l}_{3}}\] |
| C. | \[Cr{{O}_{2}}C{{l}_{2}}\] |
| D. | \[C{{r}_{2}}{{O}_{3}}\] |
| Answer» D. \[C{{r}_{2}}{{O}_{3}}\] | |