1.

Which of the following statement is incorrect for group 15 elements ?(a) Order of ionization enthalpies is ΔiH1 < ΔiH2 < ΔiH3(b) The boiling point and melting point increases from top to bottom in the group(c) Dinitrogen is a gas while all others are solids(d) All statements are correct

Answer» (b) The melting point in group 15 increases upto arsenic and then decreases upto bismuth.


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