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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp -Block Elements (group 15-18)General

Which of the following is the increasing order of enthalpy of vaporization?

A.NH₃, PH₃, AsH₃

B.AsH₃, PH₃, NH₃

C.NH₃, AsH₃, PH₃

D.PH₃, AsH₃, NH₃

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