Which of the following prefixes is used when two methyl groups are attached with the second last carbon of alkane chain?
Correct answer: C. neo-
- A. n-
- B. iso-
- C. neo-
- D. geminal-
Explanation
The prefix neo- refers to a substituent whose second-to-last carbon of the chain is trisubstituted (has three methyl groups attached to it). A neo-pentyl has five carbons total. This is kind of correct option although germinal can be correct but it asked for prefix so this is correct option
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Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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