1.

Which gas evolve when ammonia solution is added to potassium parmanganate?

Answer»

`N_(2)`
`NO`
`NO_(2)`
`N_(2)O_(5)`

SOLUTION :Aqueous solution of ammonia REDUCES potassium permangante giving manganese DIOXIDE and itself is oxidised to nitrogen.
`2KMnO_4 + 2NH_3 to 2MnO_2 + 2KOH + 2H_2O + N_2`


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