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In the formation of SO3 by : 2 SO2 + O...

In the formation of `SO_3 by `:
`2 SO_2 + O_2 overset (NO) (rarr) 2 SO_3`,
the catalytic action of ` NO` is evidenced by the formation of :

A

brown vapours

B

green vapours

C

wiolet vapours

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`MO` forms ` NO_2` as an intermediate .
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