MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the formula of formaidehyde-bisulfite ? |
| A. | HOCH<sub>2</sub>SO<sub>3</sub>Na |
| B. | CH<sub>3</sub>SO<sub>3</sub>Na |
| C. | HOCH<sub>2</sub>SO<sub>4</sub> |
| D. | HOCH<sub>3</sub>SO<sub>2</sub>Na |
| Answer» B. CH<sub>3</sub>SO<sub>3</sub>Na | |