Assertion : Transition metals are good cataly | vedclass

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(A) Transition metals act as good catalysts because they provide a large surface area for reactants to adsorb and possess variable oxidation states,wh

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) Transition metals act as good catalysts because they provide a large surface area for reactants to adsorb and possess variable oxidation states,which allow them to form unstable intermediate compounds.In the contact process for the manufacture of $H_2SO_4$,$V_2O_5$ (vanadium pentoxide) is used as a catalyst for the oxidation of $SO_2$ to $SO_3$.Since the reason provides a specific example that supports the general statement in the assertion,the reason is the correct explanation of the assertion.

Assertion : Transition metals are good catalysts.
Reason : $V_2O_5$ or $Pt$ is used in the preparation of $H_2SO_4$ by contact process.

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Assertion : Transition metals are good catalysts.Reason : $V_2O_5$ or $Pt$ is used in the preparation of $H_2SO_4$ by contact process.