MCQ
The IUPAC name is:


- A2-ethyl-2-butanol
- B3-Methyl-3-pentanol
- C3-ethyl-3-methyl-3-pentanol
- D1,1-diethyl ethanol

Explanation:
Hence IUPAC name is 3-methyl-3-pentanol.

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| Element | Fe | Co | Ni | Cu |
| Metallic radii/pm | 126 | 125 | 125 | 128 |
