NCERT Solutions for class 10 Science chapter 5: Periodic Classification of Elements

NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements is provided in this article. Some of the important topics of Periodic classification of elements include:

Expected no of questions: 2 to 3 questions for a total of 5 marks

Download: NCERT Solutions for Class 10 Science Chapter 5 pdf

NCERT Solutions for Class 10 Science Chapter 5

NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements is given below.

Class 10 Science Chapter 5 Periodic Classification of Elements – Important Topics

Periodic classification of elements have been done inorder to classify the elements according to their properties. Some of the periodic classification theories and tables include:

Newland’s law of octaves
Dobereiner Triad
Mendeleev’s periodic table

Newland’s law of Octaves: According to Newland’s law, when the elements are managed according to aggregate atomic masses, the physical and chemical properties of every 8th element are the same as that of the first.

Dobereiner Triad: Dobereiner identified a group of 3 elements with similar chemical and physical properties in the order of aggregate atomic masses and called it a triad.

Mendeleev’s Law: Madeleev’ law stated that the chemical properties and physical properties of elements are periodic purposes of their atomic masses.

The Modern Periodic Law states that- “ Properties of elements are a periodic function of their atomic number.” In the Modern Periodic Table, the elements are characterised in the form of Periods and Groups.

Some of the trends in periodic table include:

Metallic character
Non metallic character
Metalloids
Variation of atomic size
Electronegativity

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CBSE X Related Questions

1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?
View Solution
2.
Assertion (A): Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements.
Reason (R): The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
3.
Which structure in a leaf is mainly responsible for gaseous exchange?
- Xylem
- Stomata
- Phloem
- Cuticle
View Solution
4.
Assertion (A): Reflex actions do not involve thinking.
Reason (R): Most reflex actions are controlled by the spinal cord.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
5.
Assertion : In human beings, the respiratory pigment is haemoglobin present in red blood cells.
Reason (R) : Haemoglobin has a very high affinity for carbon dioxide.
- Both, Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both, Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
6.
Which of the following set of compounds does not belong to same homologous series?
- CH$_4$ and C$_4$H$_{10}$
- C$_2$H$_6$ and C$_3$H$_8$
- C$_3$H$_8$ and C$_5$H$_{12}$
- C$_4$H$_8$ and C$_5$H$_{12}$
View Solution

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NCERT Solutions for class 10 Science chapter 5: Periodic Classification of Elements

Download: NCERT Solutions for Class 10 Science Chapter 5 pdf

NCERT Solutions for Class 10 Science Chapter 5

Class 10 Science Chapter 5 Periodic Classification of Elements – Important Topics

CBSE X Related Questions

1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.
Assertion (A): Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements.
Reason (R): The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration.

3.
Which structure in a leaf is mainly responsible for gaseous exchange?

4.
Assertion (A): Reflex actions do not involve thinking.
Reason (R): Most reflex actions are controlled by the spinal cord.

5.
Assertion : In human beings, the respiratory pigment is haemoglobin present in red blood cells.
Reason (R) : Haemoglobin has a very high affinity for carbon dioxide.

6.
Which of the following set of compounds does not belong to same homologous series?

Similar Science Concepts

Comments

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NCERT Solutions for class 10 Science chapter 5: Periodic Classification of Elements

Download: NCERT Solutions for Class 10 Science Chapter 5 pdf

NCERT Solutions for Class 10 Science Chapter 5

Class 10 Science Chapter 5 Periodic Classification of Elements – Important Topics

CBSE X Related Questions

1.Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.Assertion (A): Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements. Reason (R): The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration.

3.Which structure in a leaf is mainly responsible for gaseous exchange?

4.Assertion (A): Reflex actions do not involve thinking. Reason (R): Most reflex actions are controlled by the spinal cord.

5.Assertion : In human beings, the respiratory pigment is haemoglobin present in red blood cells. Reason (R) : Haemoglobin has a very high affinity for carbon dioxide.

6.Which of the following set of compounds does not belong to same homologous series?

Similar Science Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.
Assertion (A): Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements.
Reason (R): The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration.

3.
Which structure in a leaf is mainly responsible for gaseous exchange?

4.
Assertion (A): Reflex actions do not involve thinking.
Reason (R): Most reflex actions are controlled by the spinal cord.

5.
Assertion : In human beings, the respiratory pigment is haemoglobin present in red blood cells.
Reason (R) : Haemoglobin has a very high affinity for carbon dioxide.

6.
Which of the following set of compounds does not belong to same homologous series?