MCQOPTIONS
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MCQOPTIONS
| 1. |
Which if the following is used to reduce coloration? |
| A. | CeO<sub>2</sub> |
| B. | TiO<sub>2</sub> |
| C. | Na<sub>2</sub>S |
| D. | Co<sub>3</sub>O<sub>4</sub> |
| Answer» B. TiO<sub>2</sub> | |