The aqueous solution of `CuCrO_(4)` is green because it contains:

Aqueous solution of CuSO_(4) is acidic because

The aqueous solution of CH_3COONH_4 is neutral because

The aqueous solution of Na_2SO_4 is neutral because

Aqueous solution of FeCl_(3) is acidic because of

Assertion: Concentrated aqueous solution of CuCl_(2) is green in colour. Reason : The solution contains two complex ions i.e., [Cu(H_(2)O)_(4)]^(2+) and [CuCl_(4)]^(2-) in equilibrium.

Aqueous solution of NaCl is neutral because