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When gas (A) is passed through dry KOH a...

When gas `(A)` is passed through dry `KOH` at low temperature, a deep red coloured compound `(B)` and a gas `(C)` are obtained. The gas `(A)`, on reaction with but`-2-`ene, followed by treatment with `Zn//H_(2)O` yields acetaldehyde. Identify `(A),(B)`, and `(C)`.

Text Solution

Verified by Experts

The reaction of gas `A` with but-2-ene followed by treatment with `Zn//H_2 O` suggests that `A` is `O_3`

Reaction with `KOH`
`2KOH +underset((A)) (5O_(3)) rarr underset(underset(("Deep red coloured"))((B)))(2KO_(3))+underset((C))(5O_(2))+H_(2)O`
Hence A is `O_(3),B` is `KO_(3)` and C is `O_(2)`.
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