Which of the following is not a heterogeneous | vedclass

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(A) In heterogeneous catalysis,the catalyst is in a different phase from the reactants. $1$. Lead chamber process: Uses $NO$ (gas) as a catalyst for t

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Lead chamber process

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(A) In heterogeneous catalysis,the catalyst is in a different phase from the reactants. $1$. Lead chamber process: Uses $NO$ (gas) as a catalyst for the oxidation of $SO_2$ (gas) to $SO_3$ (gas). Since both the reactants and the catalyst are in the gaseous phase,it is a homogeneous catalysis. $2$. Haber's process: Uses $Fe$ (solid) as a catalyst for the reaction between $N_2$ (gas) and $H_2$ (gas). This is heterogeneous. $3$. Ostwald's process: Uses $Pt$ (solid) as a catalyst for the oxidation of $NH_3$ (gas). This is heterogeneous. $4$. Contact process: Uses $V_2O_5$ (solid) as a catalyst for the oxidation of $SO_2$ (gas). This is heterogeneous. Therefore,the Lead chamber process is not a heterogeneous adsorption process.

Which of the following is not a heterogeneous adsorption process?

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