Pls help me fastfill in the blanksThe valency of carbonate radical is--------- The formula of bicarbonate radical------------------- The formula of nitrate radical------------------- The formula of sulphate radical-------------------

Pls help me fastfill in the blanksThe valency of carbonate radical is-

1.	Pls help me fastfill in the blanksThe valency of carbonate radical is--------- The formula of bicarbonate radical------------------- The formula of nitrate radical------------------- The formula of sulphate radical-------------------
Answer» 1) VALENCY of CARBONATE radical : 2- 2) Formula of BICARBONATE radical : HCO3- 3) Formula of NITRATE radical : NO3- 4) Formula of sulphate radical : $SO \frac{2 - }{4 }$