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The correct IUPAC name of the given compound is:

1. N-dimethyl 1-methyl-1-ethyl propane
2. 3-methyl-3(N, N-dimethyl amino) pentane
3. N-dimethyl amino-3-methyl pentane
4. 3, N, N - trimethyl-3-pentanamine

Correct answer: 3, N, N - trimethyl-3-pentanamine

Solution

The parent chain is pentane, and the amino group is attached at carbon 3. Because the nitrogen has two methyl groups, the correct prefix is N,N-dimethyl, giving 3,N,N-trimethyl-3-pentanamine as the systematic name.

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