Assign reasons for the following :
(i) In liquid state, hydrogen chloride is a stronger acid than hydrogen fluoride.
(ii) Phosphorus (P4 ) is much more reactive than nitrogen (N2 ).

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1 Answers

(i) It is due to
(a) Intermolecular hydrogen bonding in HF.
(b) Higher H—F bond dissociation enthalpy than H—Cl.

(ii) As P—P single bond (213 kJ mol-1) in P4 is much weaker than N= N triple bond (941.4 kJ mol-1) in N2 .

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