1
Q
Define Oxidation
A
An increase is Oxidation number
2
Q
Define reduction
A
A reduction in Oxidation Number
3
Q
Define disproportion
A
The same element both reduced and oxidised in the reaction
4
Q
O.N of element not in a compound
A
O.N of zero
5
Q
O.N of monatomic ions
A
2+
6
Q
Sum of O.N in a compound
A
Zero
7
Q
O.N of H in compound
A
1+
8
Q
O.N of O
A
-2
9
Q
O.N of O in peroxides
A
-1
