NCERT Solutions for Class 9 Science Chapter 1: Matter In Our Surroundings

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The NCERT Solutions for Class 9 Science have been provided in this article. Some of the important concepts in Chapter 1 Matter in Our Surroundings include:

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NCERT Solutions for Class 9 Science Chapter 1

NCERT Solutions for Class 9 Science Chapter 1 Matter In Our Surroundings

Matter can be defined as something that has mass and occupies space. Every matter is made up of molecules packed together. Matter can be classified into 3 states: solid, liquid and gas. The state of matter depends upon the closeness of molecules.

Properties of Matter

The properties of matter helps us differentiate between different materials and their formation. Properties of matter refers to the traits in materials that can be measured.

Some of the Properties of Matter are:

Matter is any substance that occupies a certain amount of space and has mass. It is made up of atoms.
Atoms are very small in size and is not visible with the naked eyes.
Particles of matter are found to be in motion constantly.
Particles of matter have gaps or spaces between them.

LPG Composition

Liquified Petroleum Gas (LPG) can be defined as a compressed gas extracted from wet natural gas via the method of absorption.

Example: What are three active components found in LPG?

Solution: The three active components found in LPG include:

Propane
Butane
Propylene

Condensation

Condensation can be defined as the process where water vapor gradually converts into a liquid form. Condensation is also said to be the reverse of evaporation, where liquid water gradually turns into vapor.

Example: Name and define the two primary types of condensation reaction.

Solution: The two types of condensation reactions include:

Intramolecular Condensation: Intramolecular condnsation occurs when two functional groups of the same molecule tend to react in order to eliminate a simple molecule in the reaction.
Intermolecular Condensation: Intermolecular condensation occurs during the reaction between two molecules (either having same or different compounds).

Evaporation

Evaporation is a type of vaporization that helps turn liquid water into vapor. One of the primary examples of evaporation is when a ice cube melts.

Example: What are some factors that affect Evaporation?

Solution: Some of the factors that affect Evaporation are:

Surface Area
Temperature
Wind
Humidity

Also Read:

Unit Related Topics
Factors Affecting Evaporation	Characteristics of Particles of Matter	Definition of Matter
States of Matter	Change of State	Pressure
Physical Nature of Matter	Matter in Our Surroundings Important Questions	Characteristics of Particles of Matter Attraction Space and Motion

Also Check:

Important Science Study Guides
Physics Constants	Named Reactions	Periodic Table
Difference between in chemistry	Difference between in physics	Difference between in biology

CBSE X Related Questions

1.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :
- \(-15 \, \text{cm and} -15 \, \text{cm from lens}\)
- \(-15 \, \text{cm and} +15 \, \text{cm from lens}\)
- \(-30 \, \text{cm and} +30 \, \text{cm from lens}\)
- \(-30 \, \text{cm and} -30 \, \text{cm from lens}\)
View Solution
2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?
View Solution
3.
Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:
- 20 cm
- 40 cm
- 50 cm
- More than 50 cm
View Solution
4.
(i) \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{NaNO}_3 + \text{AgCl} \)
(ii) \( \text{K}_2\text{SO}_4 + \text{BaCl}_2 \rightarrow \text{BaSO}_4 + 2\text{KCl} \)
Which of the following options clearly describes both the reactions?
- (i) is double displacement, (ii) is displacement reaction.
- Both, (i) and (ii) are displacement reactions and precipitation reactions.
- Both, (i) and (ii) are double displacement reactions and precipitation reactions.
- (i) is displacement, (ii) is double displacement reaction.
View Solution
5.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':
- Potassium
- Calcium
- Sodium
- Iron
View Solution
6.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.
- (i) and (iii) respectively
- (iii) and (i) respectively
- (i), (ii) and (iii), (iv) respectively
- (i), (iii) and (ii), (iv) respectively
View Solution

View All

Similar Science Concepts

Matter in our Surroundings: Definition, Properties, Effects and Characteristics

Factor Affecting Evaporation: Definition, Rate of Evaporation, Examples

What is Condensation: Bose-Einstein Condensate, Reflux & Examples

Matter in Our Surroundings: Important Questions

Science Preparation Guides

Atoms & Molecules: Definition, Properties, Key Differences and Sample Questions

Properties of Matter: Physical and Chemical Properties

LPG Composition: Definition, Components and Sample questions

Layers of the Earth: Inner and Outer Core, Mantle and Crust

Isotopes: Types, Applications, Representation and Examples

First 20 Elements of Periodic Table: Symbols, Atomic Number and Sample Questions

Chemical Change: Properties & Detailed Explanation with Examples

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Difference Between Mass and Volume

Effects of Force: Definition, Types and Sample Questions

Difference between Land Breeze and Sea Breeze

Jaundice Symptoms: Causes, Types and Diagnosis

Speed-Time graphs: Constant Speed and Acceleration Units

Difference Between Force and Pressure: Formula & SI Unit

Distance-Time Graph: Formula, Importance & Plotting

Balanced Force: Difference, Examples & Unbalanced Force

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Tissues - Definition, Types and Functions

Science NCERT Solutions

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Role of Atmosphere in Climate Control: Global Warming, Precipitation

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Difference between Molar Mass and Molecular Mass: Definition & Formulas

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NCERT Solutions for Class 9 Science Chapter 1: Matter In Our Surroundings

NCERT Solutions for Class 9 Science Chapter 1

NCERT Solutions for Class 9 Science Chapter 1 Matter In Our Surroundings

Properties of Matter

LPG Composition

Condensation

Evaporation

CBSE X Related Questions

1.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :

2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.
Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:

4.
(i) \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{NaNO}_3 + \text{AgCl} \)
(ii) \( \text{K}_2\text{SO}_4 + \text{BaCl}_2 \rightarrow \text{BaSO}_4 + 2\text{KCl} \)
Which of the following options clearly describes both the reactions?

5.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':

6.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.

Similar Science Concepts

Comments

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NCERT Solutions for Class 9 Science Chapter 1: Matter In Our Surroundings

NCERT Solutions for Class 9 Science Chapter 1

NCERT Solutions for Class 9 Science Chapter 1 Matter In Our Surroundings

Properties of Matter

LPG Composition

Condensation

Evaporation

CBSE X Related Questions

1.A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :

2.How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:

4.(i) \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{NaNO}_3 + \text{AgCl} \) (ii) \( \text{K}_2\text{SO}_4 + \text{BaCl}_2 \rightarrow \text{BaSO}_4 + 2\text{KCl} \) Which of the following options clearly describes both the reactions?

5.When an element 'X' reacts with water, it starts floating. Identify the element 'X':

6.From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively: (i) Growth of pollen tube towards ovule. (ii) Movement of sunflower towards sunlight. (iii) Movement of root towards Earth/Gravity. (iv) Movement of leaves due to breeze.

Similar Science Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :

2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.
Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:

4.
(i) \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{NaNO}_3 + \text{AgCl} \)
(ii) \( \text{K}_2\text{SO}_4 + \text{BaCl}_2 \rightarrow \text{BaSO}_4 + 2\text{KCl} \)
Which of the following options clearly describes both the reactions?

5.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':

6.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.