Which of the following ppt. is insoluble in $N{H}_3$ solution?

Q. Find the number of halides which are insoluble in water.
AgF, AgCl, AgBr, AgI, NaCl,

Q. A solution contains $\left[I^{-}\right]=\left[B{r}^{-}\right]=\left[C{l}^{-}\right]=0.2M$ each.
Then which of the following statements regarding precipitation of sparingly soluble salts $AgCl$, $AgBr$ and $AgI$ is correct:
Given :
$Salt{K}_{sp}(mol{L}^{-1}{)}^2$
$AgCl1.8\times {10}^{-10}$
$AgBr5\times {10}^{-13}$
$AgI8.3\times {10}^{-17}$

Q.

Sodium hydroxide solution is added to the solution containing the Fe³⁺ ion.

Match the ions with their coloured precipitate.

Q.

Sodium hydroxide solution is added to the solution containing the Zn²⁺ ion.

Match the ions with their coloured precipitate.