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They have the same empirical formula
They occur naturally in crude oil
They undergo addition reaction
They are obtained from fermentation of sugars.
Oxidation
Fractional distillation
Reduction
Cracking
Similarities: Differences: Chemical properties Molecular formulae
Physical properties Chemical properties
Molecular formulae Structure
Structure Molecular mass
1,2-dimethylbutane
3,3-dimethylbutane
2,2-dimethylbutane
1,1-dimethylbutane