A hydride of group -15 elements dissolves in water to form a bbasic solution. This solution dissolves the AgCl precipitate. Name the hydride. Write the chemical equations involved.

Explanation

Given a hydride of group - 15 elements dissolves in water to form a basic solution. This solution dissolves the Agcl precipitate.
`to` The given hydride is ammonia. It forms basic solution when dissolved in water due to formation of `OH^(-)` ions.
`"NH"_(3(g))+H_(2)O_((l))iff"NH"_(4("aq"))^(+)+"OH"_(" (aq)")^(-)`
`to` This solution dissolves AgCl. Ppt due to formation of comples compound.
`"AgCl"_((s))+2"NH"_(3("aq"))to["Ag"("NH"_(3))_(2)]Cl_(("aq"))`
white Ppt colourless