Thank you for reporting, we will resolve it shortly
Q.
The correct IUPAC name of $CH _{2}( OH ) CH _{2}( OH )$ is
Organic Chemistry – Some Basic Principles and Techniques
Solution:
The correct IUPAC name of $CH _{2}( OH ) CH _{2}( OH )$ is ethane-1, 2-diol. In this compound, more than one functional group of the same type are present, so their number is indicated by adding di, tri etc., before the class suffix. In such cases, the full name of the parent alkane is written before the class suffix.