Which of the following statement(s) is/are correct?

Options

A. Yellow precipitate of silver arsenite is soluble in both nitric acid and ammonia.
B. Potassium cyanide when added in very small quantities to copper sulphate solution, produces first yellow precipitate which quickly converts into white precipitate.
C. Black precipitate of `BiI_(3)` turns orange on heating with water,
D. White precipitated of `Bi(OH)_(3)` turns yellowish brown, when boiled.

Answer

A, B, C

Explanation

`{:(Cu^(2+)+2KCNrarr,Cu(CN)_(2)darr("Yellow")),(,darr),(,CuCNdarr("White")+(CN_(2))uarr):}`
(d) `Bi(OH)_(3) overset(Delta)rarr BiO. OHdarr` (Yellow-white)