Question: Carboncarbon bond dissociation energies have been measured for alkanes. Without referring to Table 4.3, identify the alkane in each of the following pairs that has

Carbon–carbon bond dissociation energies have been measured for alkanes. Without referring to Table 4.3, identify the alkane in each of the following pairs that has the lower carbon–carbon bond dissociation energy, and explain the reason for your choice.
(a) Ethane or propane
(b) Propane or 2-methylpropane
(c) 2-Methylpropane or 2,2-dimethylpropane

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