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

Options

A. `Fe^(3+)` gives red precipitate with dimethyl glyoxime in alkaline solution.
B. `Cu^(2+)` ion with potassium iodide solution gives a dirty brownish white precipitate which turns white on adding hypo solution.
C. A filter paper soaked in mercurose nitrate turns black in contact with ammonia gas.
D. `Ag_(2)O` does not dissolve in nitruc acid and ammonia solution

Answer

A, D

Explanation

(a) `Fe^(2+) +DMG rarr` Red colouration
(d) `Ag_(2)O overset(NH_(3))rarr Ag(NH_(3))_(2)^(+)`