The solubility of silver bromide in hypo solution is due to the formation of :

Assertion : $NF_3$ is a weaker ligand than $N(CH_3)_3$.
Reason : $NF_3$ ionizes to give $F^{-}$ ions in aqueous solution.

The reaction of $Pb(NO_3)_2$ and $NaCl$ in water produces a precipitate that dissolves upon the addition of $HCl$ of appropriate concentration. The dissolution of the precipitate is due to the formation of

Which one of the following has the highest molar conductivity?

$CuSO_4$ reacts with $KCN$ solution and forms:

The most stable ion is