$\text{HO}−\text{CH}_2−\text{CH}−\text{CH}_2−\text{OH}\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ∣ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
Explanation:
The given compound can be numbered from left to right or vice versa. At the 2nd position, there is a methyl group and is designated as 2-Methyl.
The parent carbon chain contains 3 carbon atoms resembling propane and at the positions 1 and 3, there's the hydroxyl group designated as 1, 3-diol.
So the IUPAC name of the given compound is 2-Methylpropane-1, 3-diol.
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| Column I | Column II |
| (a) $\frac{\Delta P }{ P ^{\circ}{ }_A}$ | (i) $\frac{\Delta T _{ b }}{ m }$ |
| (b) Kb | (ii) mol fraction of solute |
| (c) i | (iii) $\frac{\Delta T _{ f }}{ m }$ |
| (d) Kf | (iv) Ratio of observed molar mass to actual molar mass |