MCQOPTIONS
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| 1. |
The law of multiple proportions is illustrated by the two compounds [NCERT 1972] |
| A. | Sodium chloride and sodium bromide |
| B. | Ordinary water and heavy water |
| C. | Caustic soda and caustic potash |
| D. | Sulphur dioxide and sulphur trioxide |
| Answer» E. | |