Which of the following processes does not inv | vedclass

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(B) catalyst is a substance that lowers the activation energy of a reaction by providing an alternate pathway. Generally,a catalyst increases the rate

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Thermite process

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(B) catalyst is a substance that lowers the activation energy of a reaction by providing an alternate pathway. Generally,a catalyst increases the rate of a reaction.In the Haber's process,$Fe$ is used as a catalyst.In the Ostwald process,$Pt/Rh$ is used as a catalyst.In the Contact process,$V_2O_5$ is used as a catalyst.The Thermite process involves the reduction of metal oxides by aluminum,such as $2 Al + Fe_2O_3 \rightarrow Al_2O_3 + 2 Fe$. This is a highly exothermic,self-sustaining redox reaction that does not require a catalyst.

Which of the following processes does not involve a catalyst?

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