11. If the valency of oxygen is 2, derive the valencies of the other elements present in the following oxides: a. Sodium oxide (Na, O), Zinc oxide (ZnO), Lead oxide (PbO), Aluminium oxide (AIO), Calcium oxide (CaO), Barium oxide, Copper(II) oxide b. Name the elements present in the following compounds and write their valency. (i) Copper (II) hydroxide (iii) Sulphur dioxide 12.
Answers
Answered by
10
Explanation:
. If the valency of oxygen is 2, derive the valencies of the other elements present in the following oxides:
- Sodium oxide (Na2O)= Valency of sodium (Na)= +1 and of oxygen (O)= -2
- Zinc oxide (ZnO)= Valency of Zinc(Zn)= +2 and of oxygen(O)=-2
- Lead oxide (PbO)=Valency of lead(Pb)=+2 and of oxygen(O)=-2
- Aluminium oxide (AI2O3)=Valency of Aluminium(Al)=+3 and of oxygen(O)=-2
- Calcium oxide (CaO)=Valency of calcium (Ca)=+2 and of oxygen(O)=-2
- Barium oxide(BaO)=Valency of barium (Ba)=+2 and of oxygen(O)=-2
- Copper(II) oxide(CuO)=Valency of copper (ll) =+2 and of oxygen(O)=-2
b. Name the elements present in the following compounds and write their valency.
- (i) Copper =Valency of copper (Cu)=+2
- (II) hydroxide=Valency of hydroxide =-1
- (iii) Sulphur=Valency of sulphur(S)= -2
Similar questions