which is more polar Anthracene or 2,3-Dibromoanthracene?

Answer 1

2,3-Dibromoanthracene is more polar than Anthracene.

This is because the presence of bromine atoms in 2,3-Dibromoanthracene introduces more electronegative atoms into the molecule, which increases the overall polarity. The bromine atoms have a higher electronegativity compared to carbon, making them capable of attracting more electron density towards themselves. Additionally, the presence of two bromine atoms on adjacent carbon atoms further enhances the polarity of 2,3-Dibromoanthracene.