1.

A colourless gas with the smell of rottenn fish is

Answer»

`H_(2)S`
`PH_(3)`
`SO_(2)`
NONE of these

Solution :`H_(2)Sto`COLOURLESS gas with unpleasant odour of rotten eggs.
`SO_(2)to` colourless gas with a pungent SUFFOCATING odour.
`PH_(3)to` colourless gas with unpleasant garlic like odour or rotten fish odour.


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