Among the following which one is a mono atomic cation ?
Sodium ion
Fluoride ion
Sulphate ion
Calcium ion
Metals usually form:
Cations
Anions
Radicals
Polyvalent anion
The acid radical present in sodium sulphate compound is :
Sodium
Sulphate
Water
Sodium hydroxide
Fe + Cl2 → FeCl3 . How can we balance Cl atom ?
2 Fe + 3 Cl2 → FeCl3
Fe2 + Cl2 → FeCl3
2 Fe + Cl → 2 FeCl
Fe + 3 Cl2 → 2 FeCl3
Identify the polyatomic ion from the following ?
Cl-
O2-
Na+
NH4+
Match the following ?
a. Cl- - i. Poly atomic ion
b. Cr2+ - ii Mono atomic ion
c. NH4+ - iii. Mono atomic cation
d. PO43- - iv.Poly atomic cation
a.ii b.iii c.iv d.i
a.i b.ii c.iii d.iv
a.iii b.iv c.i d.ii
a.iv b.i c.ii d.iii
Formula of Alumminium oxide is Al2O3. What is the valency of Alumminium ?
2
1
3
4
Atomic number of sodium is 11. Then the number of electrons in sodium ion is :
10
11
9
12
2 Fe + 3 Cl2 → 2 FeCl3 , Name the reactant ?
Fe and Cl2
FeCl3 and Cl
3 Cl and 2 Fe
None of the above
Among the following which is a monovalent poly atomic ion ?
HSO4-
ClO-
a and b
SO32-
