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a) Y-At room temperature (250c) Y is a liquid since its M.P and B.P lie between -7oc and 58.80c OR(room temperature is between M.P and B.P.)
b) The molecular mass of x is higher than that of Z; the Vander Waals forces are stronger in X molecules than in Z molecules hence X has a higher boiling point than Z.
sharon kalunda answered the question on March 26, 2019 at 12:56
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