MCQOPTIONS
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| 1. |
Sulphur in +3 oxidation state is present in [DCE 2003] |
| A. | Sulphurous acid |
| B. | Pyrosulphuric acid |
| C. | Dithionous acid |
| D. | Thiosulphuric acid |
| Answer» D. Thiosulphuric acid | |