Diatomic molecule has a dipole moment of $1.2D$ If its bond $1.0\mathring{A}$ what fraction of an electronic charge exists on each atom ? .

Which of the following has a $3$ centred $2$ electron bond?

In which of the following pairs, the two species are not isostructural?

The hybridization of atomic orbitals of nitrogen is $N{O}_2^{+},N{O}_3^{-}$, and $N{H}_4^{+}$ respectively are

$HCN$ and $HNC$ molecules have equal number of

The pair of species with the same bond order is :

What change in energy takes place when a molecule is formed from its atoms ?

Giving two examples of compounds having covalent bonds. Explain their properties.

Draw diagram showing structure of hydrogen molecule.

Hydrogen atoms are held together to form hydrogen molecule by