The maximum covalency is equal to the number of

Important Questions on Chemical Bonding and Molecular Structure

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Which of the following options containing formula, bonding and nature of aqueous solution respectively is correct for the compound formed by two elements A and B having atomic numbers 1 and 17, respectively?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Give one example each of a liquid and a solid covalent bond.

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Bonds present in ${\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O}$ are 

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

In ozone molecule, the formal charge on the central oxygen atom is

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

The total number of dative bonds present in all the following $\mathrm{CO}, {\mathrm{NH}}_4\mathrm{Cl}, {\mathrm{Al}}_2{\mathrm{Cl}}_6, \mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6, {\mathrm{HNO}}_3$ and ${\mathrm{CO}}_2$ is

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Total number of lone pair of electrons in ${{\mathrm{I}}_3}^{-}$ ion is:

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Write with an example, how according to Lewis concept, a covalent bond is formed.

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Which of the following represents the most stable Lewis dot formula for ${\mathrm{CO}}_3^{2-}$?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

The sum of the number of dative bonds present in all the given species are; ${\mathrm{Al}}_2{\mathrm{Cl}}_6, \mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6, \mathrm{CO}, {\mathrm{NH}}_4^{+}$

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

What is a polar molecule? Give an example.

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Which of the following pair contains $2$ lone pair of electrons on the central atom?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Nitrogen shows maximum covalency of $4$ where as other heavier elements of the group show higher covalency because.

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Valence electrons in the element $\mathrm{A}$ are $3$ and that in element $\mathrm{B}$ are $6$. Most probable compound formed from $\mathrm{A}$ and $\mathrm{B}$ is

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

The numbers of lone pair and bond pairs in hydrazine are, respectively:

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

The formal charge on central oxygen atom in ozone is

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Which of the following molecule does not obey octet rule?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Which among the following is an electron deficient compound ?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

Explain how a single covalent bond is formed between two atoms of hydrogen. (Support your answer by drawing a structural diagram).

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

The number of co-ordination bonded water molecules associated with ${\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O}$ is _______

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Covalent Bonding

What is the nature of the bond between $\mathrm{B}$ and $\mathrm{O}$ in ${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_2{\mathrm{OBH}}_3 ?$