che - B. Types of Carbon Atoms in Organic Species: 1o...

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B. Types of Carbon Atoms in Organic Species: 1 o (primary) carbons. C bonded to 1 C (typically, a -CH 3 group). 2 o (secondary) carbons. C bonded to 2 C's ( e.g ., a –CH 2 - group). 3 o (tertiary) carbons. C bonded to 3 C's (typically, a CH group). 4 o (quaternary) carbons. C bonded to 4 C's. The molecule shown below has six 1 o C, three 2 o C, two 3 o C, and one 4 o C. There are four different types of 1 o C (methyl groups, CH 3 -), three different types of 2 o C (methylene groups, -CH 2 -), and two different types of 3 o C (methinyl groups, >CH-) in this molecule. These distinctions will be important when we discuss the free-radical halogenation of alkanes [Chapter 4], and also when we consider 1 H-NMR and 13 C-NMR spectra [Chapter 13]. II. Classes of Hydrocarbons. A. Hydrocarbons. 1. Compounds composed of carbon and hydrogen. 2. Can be
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che - B. Types of Carbon Atoms in Organic Species: 1o...

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