Question
Given below are two statements:
Statement I: The correct order in terms of bond dissociation enthalpy is ${Cl}_{2} > {Br}_{2} > F_{2} > I_{2}$
Statement II : The correct trend in the covalent character of the metal halides is $\left\lbrack {SnCl}_{4} > {SnCl}_{2} \right\rbrack$, $\left\lbrack {PbCl}_{4} > {PbCl}_{2} \right\rbrack$ and $\left\lbrack {UF}_{4} > {UF}_{6} \right\rbrack$
In the light of the above statements, choose the correct answer from the options given below :
Options
Solution
Statement-I :
Bond energy order is ${Cl}_{2} > {Br}_{2} > F_{2} > I_{2}$
Bond energy increases with increase in bond order.
Statement-II
Correct order of covalent character
According to the Fajan's rule, higher the charge on cation, greater is the covalent character.
${PbCl}_{2} < {PbCl}_{4}$,
${UF}_{6} > {UF}_{4}$,
$${SnCl}_{4} > {SnCl}_{2}$$
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