Name a metallic hydroxide which does not get precipitated by `NH_(4)OH` in the presence of `NH_(4)Cl`.

Name a metallic hydroxide which gets precipitated by NH_(4)OH even in the presence of NH_(4)Cl .

Which of the following is not precipitate by H_(2)S in presence of NH_(3)

Name a metallic hydroxide that is insoluble in NH_(4)OH but dissolves readily in solution of NH_(4)CI .

Name : a metallic hydroxide soluble in excess of NH_( 4)OH .

Dissociation of NH_(4)OH is decreased in presence of :-

Reduction of nitrobenzene in the presence of Zn//NH_(4)Cl gives

An aqueous solution of colourless metal sulphate M , gives a white precipitate with NH_(4)OH .This was soluble in excess of NH_(4)OH . On passing H_(2)S through this solution a white precipitate is formed.The metal M in the salt is:

Assertion: Basic radical of V group are precipitated as their carbonates in presence of NH_(4)OH . Reason: NH_(4)OH maintains the pH of the solution basic.

To a solution of a substance gradual addition of ammonium hydroxide result in a black precipitate which does not dissolve in excess of NH_(4)OH however when HCI is added to the original solution a white precipitate is formed .The solution containe

To a solution of a substance, gradual addition of ammonium hydroxide results in a brownish black precipitate which does not dissolve in excess of NH_(4)OH .However, when Kl (not in excess) is added to the original solution, a green precipitate is formed. The solution contained :