The oxidation of SO2 to SO3 by O2 can involve NO2. The reaction proceeds according to the following mechanism: 2 NO2 (g) + 2 SO2 (g) ---> 2 NO (g) + 2 SO3 (g) 2NO (g) + O2 (g) --->2 NO2 (g) a) Do we consider NO2 a catalyst or an intermediate in this reaction? b) would you classify NO as a catalyst or an intermediate in this reaction? c) is this an example of homogeneous

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The oxidation of SO2 to SO3 by O2 can involve NO2. The reaction proceeds according to the following mechanism:

2 NO(g) + 2 SO(g) ---> 2 NO (g) + 2 SO3 (g)

2NO (g) + O(g) --->2 NO(g)

a) Do we consider NOa catalyst or an intermediate in this reaction?

b) would you classify NO as a catalyst or an intermediate in this reaction?

c) is this an example of homogeneous catalysis or heterogeneous catalysis?

Group of answer choices
A.) a) catalyst; b) intermediate & c) heterogeneous
 
B.) a) intermediate; b) catalyst & c) homogeneous
 
C.) a) catalyst; b) intermediate & c) homogeneous
 
D.) a) intermediate b) catalyst & c) heterogeneous
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