`NH_(4)^(+)` is kept in group zero because

Options

A. Its salts are highly solublr in water
B. The `K_(sp)` of salts of ammonium is high
C. `K_(sp)` of salts of `NH_(4)^(+)` are low
D. Ammonium salts are insoluble in water

Answer

A, B

Explanation

(a)and (b) are correct because `NH_(4)^(+)` salts are ionic and can from H-bonds with water, therefore they are highly solublr in water. Higher the solubility, higher will be `K_(sp).`
`therefore` © and (d) are not correct.