Examples of non-redox reaction

Answer 1

Any reaction that doesn't have at least one atom that increases in oxidation number during the reaction and at least one atom that decreases in oxidation number during the reaction is not a redox reaction. The atom that decreases and the atom that increases can be atoms of the same element.

Examples:

2H2 + O2 --> 2H2O ( Atoms of elements have an oxidation number of 0, so that the hydrogen atoms change from 0 to +1, which is oxidation, while the oxygen atoms change from 0 to -2, which is reduction. So the reaction is a redox reaction.)

An example of a reaction in which atoms of the same element undergo both oxidation and reduction is:

2 MnO4- (aq) + 5 Mn (s) + 16 H+ (aq) -> 7 Mn+2 (aq) + 4 H2O (l).

(In this reaction, 2 manganese atoms change from +7 to +2, which is reduction, and 5 manganese atoms change from 0 to +2, which is oxidation. )

An example of a non-redox reaction is

Pb(NO3)2 (aq) + Na2SO4 (aq) ---> 2 NaNO3 (aq) + PbSO (s).

(No atom changes its oxidation state in this reaction.)

Answer 2

Acid Base

Displacement

Combustion

Decomposition

Precipitation

Addition

Substitution

Hydration

Halogenation

Hydrohalogenation

Hydrogenation

etc...

Answer 3

In a redox reaction, there is a change in the oxidation state of two or more reacting species whereas there is no change in oxidation sate of any species in a non-redox reaction.

Redox : H2 + F2 → 2 HF

Here H and F changes from zero O.S. to +1 and -1 respectively.

Non-redox: FeSO4 + CaS -> CaSO4 + FeS

Answer 4

1. Formation of water from hydrogen and oxygen: 2H2 + O2 → 2H2O
2. Dissolution of salt in water: NaCl(s) + H2O(l) → Na+(aq) + Cl-(aq)
3. Formation of ammonia from nitrogen and hydrogen: N2 + 3H2 → 2NH3

Answer 5

Ex: CaO + CO2 --> CaCO3 This would not involve oxidation or reduction.

Answer 6

A reaction in which oxidation and reduction take place simultaneously is called a redox reaction.

So, a non-redox reaction would be a chemical reaction with only one process.