Which of the following statement is correct ?

Easy

A

Lewis dot structures provide a picture of bonding in molecules and ions in terms of shared pair of electrons and octet rule
B

Lowest energy structure is the one with highest formal charges on the atoms
C

Octet rule is not applied in odd-electron molecules, molecules with expanded octet and incomplete octet of the central atom
D

Energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions is called lattice enthalpy

Solution

Statement (2) is incorrect. It’s correct form is as follows:
The lowest energy structure is the one with the smallest formal charges on the atoms.
The formal charge is a factor based on pure covalent view of bonding in which electron pairs are shared equally by neighboring atoms.
Rest other statements are correct.

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