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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CBSE CLASS XII Related Questions

1.
Discuss briefly giving an example in each case the role of coordination compounds in:
biological systems
medicinal chemistry
analytical chemistry
extraction/ metallurgy of metals

View Solution

2.
Depict the galvanic cell in which the reaction Zn(s) + 2Ag⁺(aq) → Zn²⁺(aq) + 2Ag(s) takes place. Further show:
(i) Which of the electrode is negatively charged?
(ii) The carriers of the current in the cell.
(iii) Individual reaction at each electrode.

View Solution

3.
Give the IUPAC names of the following compounds:
(i)CH₃CH(Cl)CH(Br)CH₃
(ii)CHF₂CBrClF
(iii)ClCH₂C≡CCH₂Br
(iv)(CCl3)₃CCl
(v)CH₃C(p-ClC₆H₄)₂CH(Br)CH₃
(vi)(CH₃)₃CCH=CClC₆H₄I-p

View Solution

4.
In the button cells widely used in watches and other devices the following reaction takes place:
Zn(s) + Ag₂O(s) + H₂O(l) \(\rightarrow\) Zn²⁺_(aq) + 2Ag(s) + 2OH^- (aq)
Determine \(\triangle _rG^\ominus\) and \(E^\ominus\) for the reaction.

View Solution

5.
Write equations of the following reactions:
(i)Friedel-Crafts reaction–alkylation of anisole.
(ii)Nitration of anisole.
(iii)Bromination of anisole in ethanoic acid medium.
(iv)Friedel-Craft’s acetylation of anisole.

View Solution

6.
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.

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.
Discuss briefly giving an example in each case the role of coordination compounds in:
biological systems
medicinal chemistry
analytical chemistry
extraction/ metallurgy of metals

2.
Depict the galvanic cell in which the reaction Zn(s) + 2Ag⁺(aq) → Zn²⁺(aq) + 2Ag(s) takes place. Further show:
(i) Which of the electrode is negatively charged?
(ii) The carriers of the current in the cell.
(iii) Individual reaction at each electrode.

3.
Give the IUPAC names of the following compounds:
(i)CH₃CH(Cl)CH(Br)CH₃
(ii)CHF₂CBrClF
(iii)ClCH₂C≡CCH₂Br
(iv)(CCl3)₃CCl
(v)CH₃C(p-ClC₆H₄)₂CH(Br)CH₃
(vi)(CH₃)₃CCH=CClC₆H₄I-p

4.
In the button cells widely used in watches and other devices the following reaction takes place:
Zn(s) + Ag₂O(s) + H₂O(l) \(\rightarrow\) Zn²⁺_(aq) + 2Ag(s) + 2OH^- (aq)
Determine \(\triangle _rG^\ominus\) and \(E^\ominus\) for the reaction.

5.
Write equations of the following reactions:
(i)Friedel-Crafts reaction–alkylation of anisole.
(ii)Nitration of anisole.
(iii)Bromination of anisole in ethanoic acid medium.
(iv)Friedel-Craft’s acetylation of anisole.

6.
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.

Similar Chemistry Concepts

Comments

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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. Discuss briefly giving an example in each case the role of coordination compounds in:biological systemsmedicinal chemistryanalytical chemistryextraction/ metallurgy of metals

2. Depict the galvanic cell in which the reaction Zn(s) + 2Ag+(aq) → Zn2+(aq) + 2Ag(s) takes place. Further show: (i) Which of the electrode is negatively charged? (ii) The carriers of the current in the cell. (iii) Individual reaction at each electrode.

3. Give the IUPAC names of the following compounds:(i)CH3CH(Cl)CH(Br)CH3(ii)CHF2CBrClF(iii)ClCH2C≡CCH2Br(iv)(CCl3)3CCl(v)CH3C(p-ClC6H4)2CH(Br)CH3(vi)(CH3)3CCH=CClC6H4I-p

4. In the button cells widely used in watches and other devices the following reaction takes place:Zn(s) + Ag2O(s) + H2O(l) \(\rightarrow\) Zn2+(aq) + 2Ag(s) + 2OH- (aq) Determine \(\triangle _rG^\ominus\) and \(E^\ominus\) for the reaction.

5. Write equations of the following reactions: (i)Friedel-Crafts reaction–alkylation of anisole.(ii)Nitration of anisole.(iii)Bromination of anisole in ethanoic acid medium.(iv)Friedel-Craft’s acetylation of anisole.

6. Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.

Similar Chemistry Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Discuss briefly giving an example in each case the role of coordination compounds in:
biological systems
medicinal chemistry
analytical chemistry
extraction/ metallurgy of metals

2.
Depict the galvanic cell in which the reaction Zn(s) + 2Ag⁺(aq) → Zn²⁺(aq) + 2Ag(s) takes place. Further show:
(i) Which of the electrode is negatively charged?
(ii) The carriers of the current in the cell.
(iii) Individual reaction at each electrode.

3.
Give the IUPAC names of the following compounds:
(i)CH₃CH(Cl)CH(Br)CH₃
(ii)CHF₂CBrClF
(iii)ClCH₂C≡CCH₂Br
(iv)(CCl3)₃CCl
(v)CH₃C(p-ClC₆H₄)₂CH(Br)CH₃
(vi)(CH₃)₃CCH=CClC₆H₄I-p

4.
In the button cells widely used in watches and other devices the following reaction takes place:
Zn(s) + Ag₂O(s) + H₂O(l) \(\rightarrow\) Zn²⁺_(aq) + 2Ag(s) + 2OH^- (aq)
Determine \(\triangle _rG^\ominus\) and \(E^\ominus\) for the reaction.

5.
Write equations of the following reactions:
(i)Friedel-Crafts reaction–alkylation of anisole.
(ii)Nitration of anisole.
(iii)Bromination of anisole in ethanoic acid medium.
(iv)Friedel-Craft’s acetylation of anisole.

6.
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.