When a metal rod M is dipped into an aqueous colourless concentrated solution of compound N, the solution turns light blue. Addition of aqueous NaCI to the blue solution gives a white precipitate O. Addition of aqueous NH_(3) dissolves O and gives an intense blue solution. The final solution contains:

When a metal rod M is dipped into an aqueous colourless concentrated s

1.	When a metal rod M is dipped into an aqueous colourless concentrated solution of compound N, the solution turns light blue. Addition of aqueous NaCI to the blue solution gives a white precipitate O. Addition of aqueous NH_(3) dissolves O and gives an intense blue solution. The final solution contains:
Answer» `[Pb(NH_(3))_(4)]^(2+)` and `[CoCI_(4)]^(2-)` `[AI(NH_(3))_(4)]^(3+)` and `[CU(NH_(3))_(4)]^(2+)` `[AG(NH_(3))_(2)]^(+)` and `[Cu(NH_(3))_(4)]^(2+)` `[Ag(NH_(3))_(2)]^(+)` and `[Ni(NH_(3))_(6)]^(2+)` Answer :C