Which of the following statements is correct?
- A$A$ catalyst always increases the rate of reaction.
- B$A$ catalyst changes the nature of the products obtained in a reaction.
- C$A$ catalyst is always an external substance added to the reaction mixture.
- D$A$ catalyst is not consumed in the reaction.
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How is Raney nickel,which is used as a catalyst,prepared?
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View SolutionAccording to the adsorption theory of catalysis,the speed of the reaction increases because
$A$ catalyst is a substance that ......
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View SolutionIn the case of autocatalysis,..........
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View SolutionThe correct statements about Zeolites are:
$(I)$ They are good shape-selective catalysts.
$(II)$ They contain $Al-O-Si$ framework.
$(III)$ They are not found in nature.
$(IV)$ They are used as catalysts for cracking hydrocarbons in the petrochemical industry.
$(I)$ They are good shape-selective catalysts.
$(II)$ They contain $Al-O-Si$ framework.
$(III)$ They are not found in nature.
$(IV)$ They are used as catalysts for cracking hydrocarbons in the petrochemical industry.
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