1.

Acidic character increases from HF to HI. State whether the above statement is True or false and give reason for your answer.

Answer»


Solution :(i) The given statement is true.
(ii) The relative ACIDIC strength of HF, HCl, HBr and HI depends UPON their bond dissociation enthalpies.
(iii) Since, the bond dissociation enthalpy of H-X bond from H-F to H-I as the size of atom increases from F to I.
Therefore, the acidic strength increases in the opposite ORDER as :
H - F `lt` H - Cl `lt` H - Br `lt` H - I


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