Covalent Bonding

What is covalency?

Which among the following is least covalent in nature?

The Xenon difluoride can act as _____.

Bonding in this molecule can be understood to involve coordinate bonding.

The valency of iron in ${\mathrm{Fe}}_2{\mathrm{O}}_3$ is

The formula of compound represents

Oxygen, nitrogen and platinum are respectively

There should be less than four electrons for atoms to form covalent bonds.

Which of the following reaction is not possible?

Which of the following mixtures has predominantly "Keesom forces" between the molecules?

Boiling point is highest for :-

${\mathrm{XCl}}_2$ is the chloride of a metal $\mathrm{X}$. State the formula of the sulphate and the hydroxide of the metal $\mathrm{X}$.

Type 1: Subjective Numerical

Assertion. The atoms in a covalent molecule are said to share electrons, yet some covalent molecules are polar.

Reason. In a polar covalent molecule, the shared electrons spend more time than average near one of the atoms

Assertion. When two hydrogen atoms approach each other to form a covalent bond, nearly $435.8 \mathrm{kJ} {\mathrm{mol}}^{-1}$ of energy is released.

Reason. When two atoms approach each other to form a covalent bond between them, potential energy of the system continuously decreases.

Correct fact about number of electrons in the electronic structure of Acetic acid is:

What happens during a coordinate bond formation?

What types of bonds and their number of are present in $\mathrm{N}{\mathrm{H}}_4^{+}$?

This question contains two statements. This is Assertion-Reason type question.  Statement - 1 (Assertion) and Statement - 2 (Reason). This question also has four alternative choices, only one of which is the correct answer. You have to select the correct choice.

Statement - 1: Thermally diamond is more stable than graphite.

Statement - 2: In diamond, the type of unit cell present is zinc blende.

Among the following, select the correct statement(s) about covalent compounds.