1.

Which of the following reactions is an example of heterogeneous catalysis

Answer»

`2CO_((G))+O_(2(g))OVERSET(NO(g))rarr2CO_(2(g))`
`2SO_(2(g))+O_(2(g))overset(NO(g))rarr2SO_(3(g))`
`2CO_((g))+O_(2(g))overset(PT(s))rarr2CO_(2(g))`
`CH_(3)CHO_((g))overset(I_(2)(g))toCH_(4(g))+CO_(g)`

Answer :C


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