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Which of the following is an example of a molecule whose centre of mass of positive and negative charges does not coincide each other?

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in Physics – Class 12 by (135k points)
Which of the following is an example of a molecule whose centre of mass of positive and negative charges does not coincide each other?

(a) NH3

(b) H2

(c) CH4

(d) CO2

This question was posed to me during an online interview.

My enquiry is from Dielectrics and Polarisation in portion Electrostatic Potential and Capacitance of Physics – Class 12

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Best answer
Correct option is (a) NH3

The best I can explain: NH3 is a  molecule in which the centre of mass of positive and negative charges does not collide with each other and is called a polar molecule. They have a permanent dipole moment. They have unsymmetrical shapes.

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