Which is/are not soluble in water?

(I) NaOH
(II) BaCO3
(III) AgCl
(IV) (NH4)3PO4
(V) FeCl2

1. (I) only
2. (III) only
3. (V) only
4. (II) and (III)
5. (II) and (V)

Is it 2. (III) only?

1 answer

Since when is barium carbonate soluble?

http://en.wikipedia.org/wiki/Solubility_table#B