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STATEMENT - 1 : A dark blue colour is obtained on adding excess of dilute NH_(4)OH solution in aqueous soluiton of copper sulphate. and STATEMENT - 2 : Dark blue colour is due to the formation of [Cu(NH_(3))_(4)]^(2+) complex ion.

Answer»

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

Answer :A


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