1.

In laboratory SO_2 is prepared easily by

Answer»

The ACTION of MODERATELY CONCENTRATED `H_2SO_4` on sulphite
The action of `H_2SO_4` on SODIUM sulphide
The action of `H_2SO_4` on sodium sulphate
None of these

Solution :`Na_2SO_3 + H_2SO_4 to Na_2SO_4+ H_2O + SO_2`


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