Which of the following are not in accordance | vedclass

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(B) $1$. Oxidising power: The order $F_2 > Cl_2 > Br_2 > I_2$ is correct due to the high reduction potential of fluorine.$2$. Ionic character of metal

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$II$ & $III$ only

Vedclass · Answer

(B) $1$. Oxidising power: The order $F_2 > Cl_2 > Br_2 > I_2$ is correct due to the high reduction potential of fluorine.$2$. Ionic character of metal halide: According to Fajan's rule,the order of ionic character is $MF > MCl > MBr > MI$. The given order $MI > MBr > MCl > MF$ is incorrect.$3$. Bond dissociation enthalpy: The correct order is $Cl_2 > Br_2 > F_2 > I_2$. The $F-F$ bond is weaker than $Cl-Cl$ due to inter-electronic repulsion between lone pairs in the small $F_2$ molecule. The given order $F_2 > Cl_2 > Br_2 > I_2$ is incorrect.$4$. Hydrogen-halogen bond strength: The order $HI Thus,statements $II$ and $III$ are incorrect.

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