NCERT Solutions For Class 11 Chemistry Chapter 3: Classification of Elements and Periodicity in Properties

NCERT Solutions for class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties are provided in this article. Some of the important topics in Classification of Elements and Periodicity in Properties chapter include:

Expected no. of questions: 2 to 4 questions of total 6 marks.

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 3 PDF

NCERT Solutions for Class 11 Chemistry Chapter 3

NCERT Solutions for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties is given below.

Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties –Important Topics

Some of the classification of elements done by scientist before the origin of periodic table were as follows.

Dobereriener’s Triads: Three elements have same physical and chemical properties were grouped together and arranged in a form of an increasing atomic mass.
Newlands Law Of Octaves: This law states that whenever elements are arranged in ascending atomic masses, then the eighth and the first element will show the same property and this law is even similar to a musical note.
Mendeleev’s Periodic Table: This periodic table is arranged based on the increasing amount of atomic masses of elements.

According to modern periodic table, elements can be classified into four types.

S block Elements - They belong to Group 1 and 2 and have alkali metals and alkali earth metals.
P block Elements- They belong to Group 13-18 and contain representative and main group elements.
D block Elements - They belong to Group 3-12 and contain transition elements.
F block Elements - They are Lanthanides and actinides(4f and 5f) type of elements and are inner transition metals.

Periodic Trends in Properties of Elements is determined by:

Atomic Radius
Ionization Energy
Electronegativity
Valency
Metallic Characteristics of an Element
Non-metallic property of an Element
Reactivity of Element
Melting & Boiling Points of Element

Chapter Related Articles:

Ionization Enthalpy	Triads	Transuranium Elements
Electronic Configuration	Germanium	Anion
Moseley’s Law	Periodicity	Modern Periodic Table

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NCERT Solutions for Class 11 Chemistry	Important Chemistry Formulas	Chemistry Study Material
Difference between Articles in Chemistry	Important Named Reactions	Chemistry Notes

CBSE CLASS XII Related Questions

1.
Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).
View Solution
2.
Calculate emf of the following cell at 298 K: \[ \text{Cr(s)} \, | \, \text{Cr}^{3+} (aq) \, (0.1\, M) \; || \; \text{Fe}^{2+} (aq) \, (0.01\, M) \, | \, \text{Fe(s)} \] Given: \[ E^\circ_{\text{Cr}^{3+}/\text{Cr}} = -0.74 \, V, \quad E^\circ_{\text{Fe}^{2+}/\text{Fe}} = -0.44 \, V, \quad \log 10 = 1 \]
View Solution
3.
Write IUPAC names of the following coordination compounds:
(i) \( [Ag(NH_3)_2][Ag(CN)_2] \)
(ii) \( K_3[Fe(C_2O_4)_3] \)
View Solution
4.
How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?
View Solution
5.
Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?
- (i), (ii) and (iv)
- (i) and (iii)
- (i), (ii) and (iii)
- (i), (iii) and (iv)
View Solution
6.
The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?
View Solution

View All

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NCERT Solutions For Class 11 Chemistry Chapter 3: Classification of Elements and Periodicity in Properties

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 3 PDF

NCERT Solutions for Class 11 Chemistry Chapter 3

Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties –Important Topics

CBSE CLASS XII Related Questions

1.
Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).

3.
Write IUPAC names of the following coordination compounds:
(i) \( [Ag(NH_3)_2][Ag(CN)_2] \)
(ii) \( K_3[Fe(C_2O_4)_3] \)

4.
How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?

5.
Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?

6.
The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?

Similar Chemistry Concepts

Comments

dOGVmW

NCERT Solutions For Class 11 Chemistry Chapter 3: Classification of Elements and Periodicity in Properties

Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 3 PDF

NCERT Solutions for Class 11 Chemistry Chapter 3

Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties –Important Topics

CBSE CLASS XII Related Questions

1.Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).

3.Write IUPAC names of the following coordination compounds: (i) \( [Ag(NH_3)_2][Ag(CN)_2] \) (ii) \( K_3[Fe(C_2O_4)_3] \)

4. How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?

5.Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?

6. The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?

Similar Chemistry Concepts

Comments

dOGVmW

1.
Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).

3.
Write IUPAC names of the following coordination compounds:
(i) \( [Ag(NH_3)_2][Ag(CN)_2] \)
(ii) \( K_3[Fe(C_2O_4)_3] \)

4.
How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?

5.
Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?

6.
The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?