Unlike propane, butane reacts: 1-combustion in oxygen 2-chlorination under illumination 3-decomposition into simple

Unlike propane, butane reacts: 1-combustion in oxygen 2-chlorination under illumination 3-decomposition into simple substances with strong heating 4-isomerization

Unlike propane, butane undergoes an isomerization reaction.
The isomerization reaction is a reaction in which a transition (or migration) of individual atoms or a group of atoms from one site to another occurs without changing its qualitative and quantitative composition.
In such cases, the starting material and the reaction product are isomers.
We write down the reaction equation.
AlCl3, 100C
CH3 – CH2 – CH2 – CH3 = CH3 – CH – CH3
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CH3
Butane under the influence of aluminum chloride converts into 2 – methylppropane