InterviewSolution
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1. Write an experiment to prove the influence of catalysts in a chemical reaction.2. What is the observation? Is there any difference occurring in the way in which the incense stick bums? |
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Answer» 1. Take some hydrogen peroxide solution in a test tube. Show a glowing incense stick into the test tube. 2. No . Now add some manganese dioxide (MnO2) into the test tube. Again show the glowing incense stick. Observation: Glowing incense stick flares up now. It indicates that when manganese dioxide is added, the rate of reaction increases and oxygen is formed faster. Filter the solution using a filter paper when the reaction is completed. The substance remaining in the filter paper is manganese dioxide itself When examined carefully it becomes clear that there is no change in its amount or property. The presence of manganese dioxide has increased the rate of the reaction. Manganese dioxide acts as a catalyst in this reaction. |
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