Answer :

(i) Here is the balanced chemical equation when XeF2 undergoes hydrolysis,



Xenon difluoride reacts with water to form Xenon, Hydrogen fluoride and oxygen.


(ii) Here is the balanced chemical equation when MnO2 is heated with conc. HCl



Chlorine Gas(Cl), Manganese(II) Chloride and(MnCl2) and Water(H2O) is obtained when Manganese(IV) Oxide reacts with conc. HCl.


OR


(i) Increasing acidic character is



In binary acids, as the size of the element increases the bond becomes weaker and hence become a better acid due to easy release of H+ ion.


(II) Decreasing bond enthalpy is



Because as the size of halogen decreases the effective nuclear charge increases and hence, the bond enthalpy increases.


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