An aqueous solution of sodium hydroxide is added dropwise to solution of gallium chloride in water, A precipitate is initially formed which dissovles on further addition of NaOH solution. Write chemcial equations.

Explanation

Initially, a gelatinous white precipitate of `Ga(OH)_(3)` is formed which dissovled in excess of aqeuous NaOH solution.
`GaCl_(3)+3NaOHrarrGa(OH)_(3)+3NaCl`
`Ga(OH)_(3)+NaOHrarrNa^(+)[Ga (OH)_(4)]^(-)`