1.

Which of the follwing molecular species does not exist?

Answer»

saturaiton point of magnetisation.
existence of TWO POLES in a magnet.
paramagnetism
none of the above

Solution :Ewing's molecular theory was ABLE to explain saturation point of magnetism and existence of two poles in a magnet. But it was not able to explain the difference between paramagnetic, diamagnetic and ferromagnetic substance.


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