NCERT Solutions for Class 11 Chemistry Chapter 4: Chemical Bonding and Molecular Structure

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NCERT Solutions for Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure is explained in detail in this article. Some of the important topics in Chemical bonding and Molecular structure includes:

Bond Enthalpy
Covalent Bond
Ionic bond
Nuclear bond
Complex bonding
Hybridisation
Lewis' dot structure
Molecular Orbital Theory
Valence Bond Theory
Chemical Bonding and Molecular Structure

Expected no of questions: 2 to 4 questions of total 7 marks

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 4 pdf

NCERT Solutions for Class 11 Chemistry Chapter 4

NCERT Solutions for Class 11 Chemistry Chapter 4 is given below.

Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure – Important Topics

Chemical bonding exists between molecules of the same or different elements. It also exists between the subatomic particles. Some of the different types of bonding are:

Ionic/ Electrovalent Bond: This bond is established by the exchange of oppositely charged ion commonly taking place in a metal and non metal (eg: Sodium and Chlorine).
Covalent Bond: Covalent bonding is where electrons are shared between the participating molecules.
Nuclear Bond: This is the bonding force that keeps the protons and neutrons together inside the nucleon.

Lattice Enthalpy of an ionic solid is defined as the energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions.

Types of bonds can be characterized based on the bond parameters. Some of the bond parameters are:

Bond length
Bond angle
Bond enthalpy
Bond order
Resonance structures

Hybridisation is the process of intermixing the orbitals of slightly different energies to redistribute their energies resulting in the formation of new sets of orbitals of equivalent energies and shapes. The various hybridisation are:

sp
sp²
sp³
sp³d
sp³d²

Read More:

Bond Energy	Sigma and Pi Bond	Valence Electrons
VSEPR Theory	Electron Affinity	PCl5 Hybridisation
Bond Order formula	Lattice Energy Formula	Polar Compounds

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CBSE CLASS XII Related Questions

1.
Predict the products of electrolysis in each of the following: (i) An aqueous solution of CuCl$_2$ with platinum electrodes. (ii) A concentrated solution of H$_2$SO$_4$ with platinum electrodes.
View Solution
2.
The half-life periods of decomposition of $\mathrm{NH_3}$ for different initial pressures are given below :

The order of the reaction is :
- zero order
- first order
- 0·5
- second order
View Solution
3.
According to Werner's theory, the primary valencies of the central metal atom :
- are satisfied by neutral molecules or negative ions.
- are equal to its coordination number.
- are satisfied by negative ions.
- are non-ionisable.
View Solution
4.
The following reactions occur at the anode during the electrolysis of aqueous sodium chloride solution: \[ Cl^-_{(aq)} \rightarrow \frac{1}{2}Cl_2(g)+e^- \qquad E^\circ_{\text{cell}}=1.36\,V \] \[ 2H_2O(l) \rightarrow O_2(g)+4H^+(aq)+4e^- \qquad E^\circ_{\text{cell}}=1.23\,V \] Which reaction is feasible at the anode and why?
View Solution
5.
Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?
View Solution
6.
Half-life ($ t_{1/2} $) of a first order reaction is 1386 s. The value of rate constant is:
- $0.5 \times 10^{-4} \, \text{s}^{-1}$
- $5.0 \times 10^{-4} \, \text{s}^{-1}$
- $0.5 \times 10^{-5} \, \text{s}^{-1}$
- $0.5 \times 10^{-3} \, \text{s}^{-1}$
View Solution

View All

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NCERT Solutions for Class 11 Chemistry Chapter 4: Chemical Bonding and Molecular Structure

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 4 pdf

NCERT Solutions for Class 11 Chemistry Chapter 4

Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure – Important Topics

CBSE CLASS XII Related Questions

1.
Predict the products of electrolysis in each of the following: (i) An aqueous solution of CuCl$_2$ with platinum electrodes. (ii) A concentrated solution of H$_2$SO$_4$ with platinum electrodes.

2.
The half-life periods of decomposition of $\mathrm{NH_3}$ for different initial pressures are given below :

The order of the reaction is :

3.
According to Werner's theory, the primary valencies of the central metal atom :

5.
Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?

6.
Half-life (\( t_{1/2} \)) of a first order reaction is 1386 s. The value of rate constant is:

Similar Chemistry Concepts

Comments

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NCERT Solutions for Class 11 Chemistry Chapter 4: Chemical Bonding and Molecular Structure

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 4 pdf

NCERT Solutions for Class 11 Chemistry Chapter 4

Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure – Important Topics

CBSE CLASS XII Related Questions

1.Predict the products of electrolysis in each of the following: (i) An aqueous solution of CuCl$_2$ with platinum electrodes. (ii) A concentrated solution of H$_2$SO$_4$ with platinum electrodes.

2.The half-life periods of decomposition of $\mathrm{NH_3}$ for different initial pressures are given below :The order of the reaction is :

3.According to Werner's theory, the primary valencies of the central metal atom :

5.Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?

6.Half-life (\( t_{1/2} \)) of a first order reaction is 1386 s. The value of rate constant is:

Similar Chemistry Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Predict the products of electrolysis in each of the following: (i) An aqueous solution of CuCl$_2$ with platinum electrodes. (ii) A concentrated solution of H$_2$SO$_4$ with platinum electrodes.

2.
The half-life periods of decomposition of $\mathrm{NH_3}$ for different initial pressures are given below :

The order of the reaction is :

3.
According to Werner's theory, the primary valencies of the central metal atom :

5.
Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?

6.
Half-life (\( t_{1/2} \)) of a first order reaction is 1386 s. The value of rate constant is: