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Organic Chemistry

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Alkanes

Question
4 out of 15
 

Choose the correct name of the following compound from the choices given below.



A 2-propyl-5-methyl heptane
B 3-methyl-6-propyl heptane
C 3,6-dimethyl nonane
D 4,7-dimethyl nonane
Ans. C First, we have to number the carbon chain to get the longest possible chain in the structure. The numbering should be done in such a way that the branches will have the smallest substituent number. The numbering is done as follows:

There are 9 carbons in the parent chain. So the parent chain is clear and the complete name ends with "nonane." This rules out Choices A and B. There are 2 methyl groups on carbons 3 and 6. So the compound is 3,6-dimethyl nonane.

Alkanes Flashcard List

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