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Which of the following is an example of a molecule whose centre of mass of positive and negative charges 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 coincide each other?

(a) CO2

(b) CO

(c) CH3OH

(d) NH3

I got this question in my homework.

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

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Correct choice is (a) CO2

The explanation is: CO2 is a  molecule in which the centre of mass of positive and negative charges collide with each other and is called a non-polar molecule. They normally have zero dipole moment. They have symmetrical shapes.

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