InterviewSolution
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InterviewSolution
| 1. |
`MnO_(2)` used as a catalyst in the preparation of oxygen from `KClO_(3)` should be completely free of carbon. Justify. |
| Answer» `MnO_(2)` usually contains coal as impurity. If such `MnO_(2)` is used, carbon when heated with potassium chlorate leads to an explosion with the release of enormous amount of heat since it is a highly exothermic reaction. | |