Covalent Bonding

Which among the following is least covalent in nature?

The different types of bonds present in ${\mathrm{CuSO}}_4·5{\mathrm{H}}_2\mathrm{O}$ are

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

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.

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

The formation of a chemical bond is accompanied with decrease in:

Total number of electron pairs shared by nitrogen atoms in the ${\mathrm{N}}_2$ molecule is?

Select which type of overlapping is responsible for $\mathrm{\pi }$-character in $\mathrm{S}\mathrm{i}–\mathrm{N}$ bond of ${\mathrm{H}}_3\mathrm{S}\mathrm{i}\mathrm{N}\mathrm{C}\mathrm{O}$

During a coordinate bond formation,

In a covalent bond formation:

How many and what types of bonds are present in $\mathrm{N}{\mathrm{H}}_4^{+}$?

This is $\mathrm{Assertion}-\mathrm{Reason}$ type question. This question contains two statements. 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.

Assertion: Diamond is thermally more stable than graphite.

Reason: In diamond unit cell is like of zinc blende.

Number of electrons in $-CON{H}_2$ is

Which of the following does not have coordinate bond?

Which of the following molecule/ion has all the three types of bonds, electrovalent, covalent and coordinate?

In the ${\mathrm{N}}_2$ molecule, the number of electron pairs shared by the nitrogen atoms is

The bond that exists between ${\mathrm{N}\mathrm{H}}_3$ and ${\mathrm{B}\mathrm{F}}_3$ is called

Which of the following, statements is correct for carbon monoxide?

Which of the following , statements is correct for carbon monoxide ?