Chapter 9, Problem 76E

Interpretation Introduction

Interpretation: The species that correspond to larger dispersion forces in an aqueous solution, among purines and pyrimidines, is to be stated.

Concept introduction: The weakest intermolecular forces are the dispersion forces. These are referred to as the temporary attractive forces that exist when electrons in two neighboring atoms occupy positions that correspond to the formation of a temporary dipole by the atoms.

To determine: The larger dispersion forces in aqueous solution among purines and the pyrimidines. It is given that the purines are adenine and guanines which have two ring in their structure, whereas the pyrimidines are thymine and cytosine which consists of a single ring.