Samacheer Kalvi solutions for Chemistry - Volume 1 and 2 [English] Class 11 TN Board chapter 10 - Chemical bonding [Latest edition]

In which of the following Compounds does the central atom obey the octet rule?

In the molecule O_A = C = O_B, the formal charge on O_A, C and O_B are respectively.

Which of the following is electron deficient?

Which of the following molecule contain no л bond?

The ratio of number of sigma (σ) and pi (л) bonds in 2- butynal is ______.

Which one of the following is the likely bond angles of sulphur tetrafluoride molecule?

Assertion: Oxygen molecule is paramagnetic.

Reason: It has two unpaired electron in its bonding molecular orbital.

According to Valence bond theory, a bond between two atoms is formed when ______.

In ClF₃, NF₃ and BF₃ molecules the chlorine, nitrogen and boron atoms are ______.

When ones and three p orbitals hybridise,

Which of these represents the correct order of their increasing bond order.

Hybridisation of central atom in PCl₅ involves the mixing of orbitals.

The correct order of O – O bond length in hydrogen peroxide, ozone and oxygen is

Which one of the following is diamagnetic?

Bond order of a species is 2.5 and the number of electons in its bonding molecular orbital is formd to be 8 The no. of electons in its antibonding molecular orbital is

Shape and hybridisation of IF₅ are ______.

Pick out the incorrect statement from the following:

The molecules having same hybridisation, shape and number of lone pairs of electons are ______.

In which of the following molecules / ions BF₃, NO₂^– H₂0 the central atom is sp² hybridised?

Some of the following properties of two species, NO₃^– and H₃O⁺ are described below. Which one of them is correct?

The types of hybridiration on the five carbon atom from right to left in the, 2,3 pentadiene.

XeF₂ is isostructural with ______.

The percentage of s-character of the hybrid orbitals in methane, ethane, ethene and ethyne are respectively.

Of the following molecules, which have shape similar to carbon dioxide?

According to VSEPR theory, the repulsion between different parts of electrons obey the order.

Shape of ClF₃ is ______.

Non – Zero dipole moment is shown by ______.

Which of the following conditions is not correct for resonating structures?

Among the following, the compound that contains, ionic, covalent and Coordinate linkage is ______.

CaO and NaCl have the same crystal structure and approximately the same radii. If U is the lattice energy of NaCl, the approximate lattice energy of CaO is ______.

Define bond order.

Define Hybridisation.

Define σ – bond.

What is a pi - bond?

In CH₄, NH_3, and H₂O, the central atom undergoes sp3 hybridization – yet their bond angles are different. Why?

Explain Sp² hybridization in BF₃.

Draw the M.O diagram for oxygen molecule calculate its bond order and show that O₂ is paramagnetic.

Draw MO diagram of CO and calculate its bond order.

What do you understand by Linear combination of atomic orbitals in MO theory?

Discuss the formation of N₂ molecule using MO Theory.

What is dipole moment?

Linear form of carbondioxide molecule has two polar bonds. Yet the molecule has Zero dipole moment. Why?

Draw the Lewis structure for the following species.

\[\ce{NO^-3}\]

Draw the Lewis structure for the following species.

\[\ce{SO^{2-}4}\]

Draw the Lewis structure for the following species.

HNO₃

Draw the Lewis structure for the following species.

O₃

Explain the bond formation if BeCl₂ and MgCl₂.

Which bond is stronger σ or π? Why?

Define bond energy.

Hydrogen gas is diatomic whereas inert gases are monoatomic – Explain on the basis of MO theory.

What is the Polar Covalent bond?

Explain an example of a Polar Covalent bond.

Considering x-axis as the molecular axis which out of the following will form a sigma bond.

1s and 2p_y

Considering x-axis as the molecular axis which out of the following will form a sigma bond.

2p_x and 2p_y

Considering x-axis as the molecular axis which out of the following will form a sigma bond.

2p_x and 2p_z

Considering x-axis as the molecular axis which out of the following will form a sigma bond.

1s and 2p_z

Explain resonance with reference to a carbonate ion.

Explain the bond formation in ethylene.

Explain the bond formation in acetylene.

What type of hybridisation is possible in the following geometeries?

octahedral

What type of hybridisation is possible in the following geometeries?

tetrahedral

What type of hybridisation is possible in the following geometeries?

square planer

Explain VSEPR theory. Applying this theory to predict the shapes of IF₇ and SF₆.

CO₂ and H₂O both are triatomic molecule but their dipole moment values are different. Why?

Which one of the following has the highest bond order?

1. N₂
2. N₂⁺
3. N₂^–

Explain the covalent character in ionic bond.

Describe Fajan’s rule.