Four students were asked to study the reaction between aqueous solutions of barium chlorideand sodium sulphate. They reported their experiment as follows. On mixing the solutions of the two salts in test-tube:
(i) the colour of the mixture becomes brown
(ii) the solutions form separate layer
(iii) a colourless mixture is obtained
(iv) a white substance settles at the bottom
The correct report is _______
(A) (i) (B) (ii)
(C) (iii) (D) (iv)
