Kossel-Lewis Approach to Chemical Bonding

Mention the fluoride compounds of the noble gases.

What are the formal charges on $\mathrm{P}$ and $\mathrm{O}$ in the Lewis (electron dot) structure of the phosphate oxyanion represented in the figure?

Give 2 drawbacks of Kossel's Postulate.

Mention few applications of formal charges?

_____ is a factor based on a pure covalent view of bonding in which electron pairs are shared equally by neighbouring atoms.

Formal charges do not indicate real charge separation within the molecule.

How will you calculate the valency of potassium?

Define the group valency.

List some odd electron molecules.

Identify odd-electron molecules from the following:

Which of the following oxides is an odd-electron molecule.

Which of the following bonds can be present in a chemical compound?

Hydrogen gas is a chemical compound.

Which of the following is a Chemical Compound?

Which of the following is not a Chemical Compound?

In ${\mathrm{OF}}_2$ molecule, the number of bond pairs and lone pairs of electrons are $2 \mathrm{and} 8$.

In the Lewis structure, the formal charge on the central atom of ${\mathrm{SnCl}}_3^{-}$ is

Aluminium chloride$\left({\mathrm{AlCl}}_3\right)$ is a Lewis acid because it can donate electrons.

In ${{\mathrm{PO}}_4}^{3-}$ ion formal charge on the oxygen atom of $\mathrm{P}-\mathrm{O}$ bond is