The bond length of HCl molecule is 1.275 Ao and its dipole moment is 1.03 D. The ionic character of the molecule (in per cent) ( charge of the electron=4.8×10-10  esu) is

Given,observed dipole moment = 1.03 DBond length of HCl molecule, d = 1.275 Ao   = 1.275 ×10-8  cm Charge of electron, e-=4.8×10-10  esuPercentage ionic character = ?Theoretical value of dipole moment = e×d                           =4.8×10-10×1.275×10-8  esu.cm                           =6.12×10-18  esu.cm   = 6.12 DPercentage ionic character