1.

Statement-1:White crystalline precipitate of silver sulphite dissolves if sulphite ions are added in excess. Statement-2:Sulphite ions decolourise the pink colour of acidified KMnO_4

Answer»

Statement-1 is TRUE, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
Statement-1 is True, Statement-2 is FALSE.
Statement-1 is False, Statement-2 is True.

Solution :Statement-1:`Ag_2SO_3 darr + SO_3^(2-)to 2[Ag(SO_3)]^(-)`(SOLUBLE complex)
Statement-2:`5SO_3^(2-)+2MnO_4^(-)`(pink)+`6H^(+)to 2Mn^(2+)`(colourless)+`5SO_4^(2-)+3H_2O`


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