The dipole moment of KCl is 3.336×10−29 coulomb metre which indicates that it is a highly polar molecule. The interatomic distance between K+ and Cl− in this molecule is 2.6×10−10 m. Calculate the dipole moment of KCl molecule, if there were opposite charges of one fundamental unit located at each nucleus. Calculate percentage ionic character of KCl. (IIT 1993)