Question

Which of the following chemical reaction represents homogeneous catalysis?

• A. $ {{N}_{2}}(g)+3{{H}_{2}}(g)\xrightarrow[{}]{Fe}2N{{H}_{3}}(g) $
• B. $ 2S{{O}_{2}}(g)+{{O}_{2}}(g)\xrightarrow[{}]{NO}2S{{O}_{3}}(g) $
• C. $ CO(g)+3{{H}_{2}}(g)\xrightarrow[{}]{Ni}C{{H}_{4}}(g)+{{H}_{2}}O(g) $
• D. $ 2S{{O}_{2}}(g)+{{O}_{2}}(g)\xrightarrow[{}]{{{V}_{2}}{{O}_{5}}}2S{{O}_{3}}(g) $

Answer 1

Answer: (B)

When the physical states (such as solid, liquid, gas) of reactants and catalyst are same then such type of catalysis is known as homogeneous catalysis. $ 2S{{O}_{2}}(g)+{{O}_{2}}(g)\xrightarrow[{}]{NO(g)}2S{{O}_{3}}(g) $ In the above reaction both reactants and catalyst are in the gaseous state.