Q 1168512405.     `NO_2` is involved in the formation of smog and acid rain. It is formed importantly as:

`NO (g) + O_3(g) ⇌ NO_2(g) + O_2(g); K_c = 6.0 × 10^(34)`

The air over a metropolitan city contained `1.0 × 10^(-5) M` `NO`, `1.0 × 10^(-6) M` `O_3`, `2.5 × 10^(-4) M` `NO_2` and `8.2 × 10^(-3) M` `O_2.` These data suggest that

A

more of `NO_2` and `O_3` tend to be formed

B

more of `NO_2` and `O_2` tend to be formed

C

no tendency to change because the reaction is at equilibrium.

D

more of NO and `O_3` tend to be formed

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