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P-1 Chemical reactions and equations — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Chemical reactions and equations2 Marks
Question
Write the notes : Catalyst
✓

Answer

The substance in whose presence the rate of a chemical reaction changes, without causing any chemical change to it is called a catalyst. e.g. Potassium chlorate $(KCIO_3)$ decomposes rapidly in presence of manganese dioxide $(MnO_2)$ to liberate $O_2$, gas, where manganese dioxide acts as a catalyst.

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