5(iii)
Seema takes a blue crystalline salt P in a test tube. On heating it produces a white anhydrous powder. P is dissolved in water. Zinc is added to one part of the solution and to another part of the solution Barium chloride is added.
(a) Name the compound P.
(b) Mention one observation when zinc is added to the solution of P.
(c) State the colour of the precipitate formed when barium chloride is added to the solution of P.
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(a) P is blue vitriol [CuSO4.5H2O]
(b) Blue colour slowly fades as ZnSO4 is formed.
(c) White ppt. of BaSO4 is obtained.
CuSO4 + BaCl2 ⟶ BaSO4 ↓ + CuCl2