1.

(a) Account for the following :(i) Acidic character increases from H_(2)O to H_(2)Te. (ii) F_(2)is more reactive than ClF_(3) , whereas ClF_(3)is more reactive thanCl_(2). (b) Draw the structure of (i) XeF_(2), (ii) XeOF_(4)(c) Give one example to show the anomalous reaction of fluorine.

Answer»

Solution :(a) (i) DUE to DECREASE in bond dissociation enthalpy of E-H
(ii) Due to lower bond dissociation enthalpy of F-F bond than Cl-F bond whereas Cl–Cl bond has HIGHER bond dissociation enthalpy than Cl-F bond.

(c) `2F_(2)(G) + 2H_(2)O(l) rarr4H^(+)(aq) + 4F^(–)(aq) + O_(2)(g)`


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