Given below are two statements : Statement I : The correct order in terms of bond dissociation enthalpy is Cl2 Br2 F2 I2 Statement II : The correct trend in the covalent character of the metal h

Question

Given below are two statements : Statement I : The correct order in terms of bond dissociation enthalpy is Cl2 > Br2 > F2 > I2 Statement II : The correct trend in the covalent character of the metal halides is [SnCl4 > SnCl2], [PbCl4 > PbCl2] and [UF4 > UF6] In the light of the above statements, choose the correct answer from the options given below :

(A) Statement I is true but Statement II is false
(B) Both Statement I and Statement II are true
(C) Statement I is false but Statement II is true
(D) Both Statement I and Statement II are false

Prashant Kotian · Accepted Answer

Correct answer: A. Statement-I : Bond energy order is Cl2 > Br2 > F2 > I2 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. PbCl2 < PbCl4 , UF6 > UF4 , SnCl4 > SnCl2

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