A certain compound `(X)` when treated with copper sulphate solution yields a brown precipitate. On adding hypo solution the precipitate turns white. The compound is

A certain compound (X) when treated with copper sulphate solution yields a brown precipatate ,On adding hypo solution ,the ppt ,turns white.The compound (X) is

A metal halide X on treating with copper sulphate solution yields a brown precipitate Y. Y turns colourless on adding with hypo. What are X and Y?

When iron filling are added to copper sulphate solution Cu is precipitated because of

Aqueous copper sulphate solution gives: a green precipitate with aquous potassium fluoride.

The aqueous solution of a certain compound (X), when added to a copper sulphate solution, a brown precipitate is obtained which tums white on addition of excess of Na_(2)S_(2)O_(3) solution. Its aqueous solution, when added to Ag^(+) ion solution, a yellow curdy precipitate is obtained which is insoluble in ammonium hydroxide. Hence, compound (X) is

An inorganic compound 'A' on heating with solution of KOH , gives a gas B and the solution of compound C. gas B on ignition with excess of air gives a compound D and water. Copper sulphate gives a black precipitate on passing through its solution. White precipitate E is obtained on reaction of C with copper sulphates solution. Compound D is: