HARD

Earn 100

Draw the structure of carbon dioxide.

Important Questions on Ionic and Covalent Bonding

HARD

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

The lattice energies of

NaCl, NaF, KCl

and

RbCl

follow the order

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Maximum bond angle at nitrogen is present in which of the following?

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Among the following molecules, the one with the largest bond angle at the central atom is

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

What do you understand by a lone pair of electrons?

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Which substance from the following is not obtained during destructive distillation of mineral coal?

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Total number of lone pair of electrons in

{I_{3}}^{-}

ion is:

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

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

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

The compound having longest

C - Cl

bond is:

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

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

HARD

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Ethane with the molecular formula

C_{2} H_{6}

has

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Give a reason for the following:

Ionic compounds have a high melting point.

HARD

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Draw the electron dot diagram for the compound given below. Represent the electrons by (.) and (x) in the diagram.

Water molecule [Atomic No. of $H = 1, O = 8$ ]

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

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

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Which of the following compounds contain(s) no covalent bond(s)?

KCl, {PH}_{3}, O_{2}, B_{2} H_{6}, H_{2} {SO}_{4}

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Arrange the following compounds in increasing order of

C - O H

bond length: methanol, phenol,

p

-ethoxyphenol

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Which of the following pair contains

2

lone pair of electrons on the central atom?

EASY

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

The number of

π

-bonds and

σ

-bonds present in naphthalene are respectively

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

The compound(s) with two lone pairs of electrons on the central atom is (are)

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

Draw the electron dot diagram of Hydronium ion. $(H = 1; O = 8)$

MEDIUM

Physical Science>Chemistry>Ionic and Covalent Bonding>Covalent Bond

What are covalent compounds? Write any three features and give two examples.

Draw the structure of carbon dioxide.

Important Questions on Ionic and Covalent Bonding

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