EAMCET Engineering 2008 Solved Paper

Given,
observed dipole moment =1.03D
Bond length of HCl molecule, d=1.275Å
=1.275×10−8‌cm
Charge of electron, ‌‌e−=4.8×10−10 esu
Percentage ionic character = ?
Theoretical value of dipole moment =e×d
‌=4.8×10−10×1.275×10−8‌esu−cm
‌=6.12×10−18‌esu−cm
‌=6.12D
Percentage ionic character
‌=‌

‌ observed dipole moment ‌

‌ theoretical value of dipole moment ‌

×100
‌=‌

1.03

6.12

×100
‌=16.83%