What are the different types of C-H bonds in octane, and how are they determined?

 In octane, there are three different types of C-H bonds: primary, secondary, and tertiary.

A primary C-H bond is a C-H bond where the carbon atom is bonded to one other carbon atom.

A secondary C-H bond is a C-H bond where the carbon atom is bonded to two other carbon atoms.

A tertiary C-H bond is a C-H bond where the carbon atom is bonded to three other carbon atoms.

These types of bonds can be determined by analyzing the number of other carbon atoms bonded to the carbon atom in question. If there is only one other carbon atom bonded to the carbon atom, it is a primary C-H bond, if there are two other carbon atoms bonded to the carbon atom, it is a secondary C-H bond, and if there are three other carbon atoms bonded to the carbon atom, it is a tertiary C-H bond.

For example, in octane, C7H16, the 7th carbon (counting from left to right) is bonded to 1 other carbon atom and therefore it's a primary C-H bond. The bond between C3 and H is bonded to two other carbon atoms and therefore it's a secondary C-H bond. The bond between C4 and H is bonded to 3 other carbon atoms and therefore it's a tertiary C-H bond.

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