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Write structures for each of the following compounds. Why are the given names incorrect? Write correct IUPAC names:
(i) 2-Ethylpentane
(ii) 5-Ethyl-3-methylheptane

(i) The structure of 2-Ethyl pentane is:

Largest chain is of six carbon atoms and not that of five:

(ii) Structure of 5-Ethyl-3-methylheptane is:

Numbering is to be started from the end which gives the lowest number to ethyl group

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