MCQ
The correct IUPAC name of the following alkane is:

  • A
    3, 6 – Diethyl – 2 – methyloctane.
  • B
    5 – Isopropyl – 3 – ethyloctane.
  • C
    3 – Ethyl – 5 – isopropyloctane.
  • D
    3 – Isopropyl – 6 – ethyloctane.

Answer

  1. 3, 6 – Diethyl – 2 – methyloctane.

Explanation:

$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3\ \ \ \ \ \ \ \ \ \ 4\ \ \ \ \ \ \ \ \ \ 5\ \ \ \ \ \ \ \ \ \ 6\ \ \ \ \ \ \ \ \ \ 7\ \ \ \ \ \ \ \ \ \ 8\\\text{H}_3\text{C}\ \ -\ \text{CH}_2-\text{CH}-\text{CH}_2-\text{CH}_2-\text{CH}-\text{CH}_2-\text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3-\ ^2\text{CH}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_2\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^1\text{CH}_3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3,6-\text{Diethyl}-2-\text{methyloctane}$

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