Physics Wallah is an Indian edtech platform that provides accessible & comprehensive learning experiences to students from Class 6th to postgraduate level. We also provide extensive NCERT solutions, sample paper, NEET, JEE Mains, BITSAT previous year papers & more such resources to students. Physics Wallah also caters to over 3.5 million registered students and over 78 lakh+ Youtube subscribers with 4.8 rating on its app.
We Stand Out because
We provide students with intensive courses with India’s qualified & experienced faculties & mentors. PW strives to make the learning experience comprehensive and accessible for students of all sections of society. We believe in empowering every single student who couldn't dream of a good career in engineering and medical field earlier.
Our Key Focus Areas
Physics Wallah's main focus is to make the learning experience as economical as possible for all students. With our affordable courses like Lakshya, Udaan and Arjuna and many others, we have been able to provide a platform for lakhs of aspirants. From providing Chemistry, Maths, Physics formula to giving e-books of eminent authors like RD Sharma, RS Aggarwal and Lakhmir Singh, PW focuses on every single student's need for preparation.
What Makes Us Different
Physics Wallah strives to develop a comprehensive pedagogical structure for students, where they get a state-of-the-art learning experience with study material and resources. Apart from catering students preparing for JEE Mains and NEET, PW also provides study material for each state board like Uttar Pradesh, Bihar, and others
Ans. The classification of matter is the categorization of substances based on their composition, structure, and properties. It helps scientists organize and understand the vast diversity of materials found in the universe.
Q.2 : How is matter classified?
Ans. Matter is classified into several categories based on its composition. The main classifications include elements, compounds, mixtures, and subcategories such as homogeneous and heterogeneous mixtures.
Q.3 : What are elements?
Ans. Elements are pure substances made up of only one type of atom. They cannot be broken down further into simpler substances by chemical means. Examples of elements include oxygen, hydrogen, carbon, and iron.
Q.4 : What are compounds?
Ans. Compounds are substances composed of two or more different types of elements chemically bonded together in fixed proportions. They can be broken down into simpler substances by chemical reactions. Examples of compounds include water, carbon dioxide, and sodium chloride (NaCl).
Q.5 : What are mixtures?
Ans. Mixtures are combinations of two or more substances that are physically mixed together but not chemically bonded. Mixtures can be separated into their individual components by physical means, such as filtration, distillation, or chromatography.
Q.6 : What is the difference between homogeneous and heterogeneous mixtures?
Ans. Homogeneous mixtures have a uniform composition throughout and appear the same at the macroscopic level. Examples include saltwater and air. Heterogeneous mixtures have uneven compositions and can be distinguished into separate phases. Examples include salad, sand, and gravel.
Q.7 : How are substances classified based on their physical state?
Ans. Substances can also be classified based on their physical state, which includes solid, liquid, and gas. Solids have a definite shape and volume, liquids have a definite volume but take the shape of their container, and gases have neither definite shape nor volume.
Classification Of Matter, Physical And Chemical Classification, Important Topics For JEE 2025
Classification Of Matter : Matter is classified based on its physical and chemical properties into pure substances and mixtures. Pure substances include elements and compounds, each with fixed compositions. Mixtures, which can be homogeneous or heterogeneous, consist of two or more substances physically combined without fixed ratios.
Shrivastav 3 Jun, 2024
Share
Classification Of Matter :
Welcome, curious minds, to the captivating world of matter! From the air we breathe to the food we eat, everything around us is made up of matter. But have you ever wondered how scientists classify different types of matter? In this article, we'll embark on an enlightening journey to explore the classification of matter, breaking down complex concepts into simple terms that anyone can understand. By the end of our exploration, you'll have a clear understanding of the various categories of matter and their significance in our everyday lives.
What is Matter?
Matter is anything that occupies space and has mass. It encompasses everything around us, including solids, liquids, gases, and even the tiniest particles like atoms and molecules.
Classification Of Matter
Classification Of Matter :
Matter is further classified into two categories:
(i)
Physical Classification
(ii)
Chemical Classification
Physical Classification:
It is based on physical state under ordinary conditions of temperature and pressure, matter can be classified into the following three types:
(a)
Solid
(b)
Liquid
(c)
Gas
(a)
Solid:
A substance is said to be solid if it possesses a definite volume and a definite shape. E.g. sugar, iron, gold, wood etc.
(b)
Liquid:
A substance is said to be liquid if it possesses a definite volume but not definite shape. They take up the shape of the vessel in which they are put. e.g. water, milk, oil, mercury, alcohol etc.
(c)
Gas:
A substance is said to be gas if it neither possesses a definite volume nor a definite shape. This is because they fill up the whole vessel in which they are put. e.g. hydrogen(H
2
), Oxygen(O
2
), carbon dioxide (CO
2
) etc.
Properties
Solid
Liquid
Gas
Shape
Definite
Indefinite
Indefinite
Volume
Definite
Definite
Indefinite
Attraction Force
Strongest
Moderate
Weakest
Examples
Sugar, Iron, Gold, Wood etc.
Water, Milk, Oil, Mercury
Dihydrogen, Oxygen, Carbon dioxide, etc.
These three states of matter are interconvertible by changing temperature and pressure.
(ii)
Chemical Classification:
It may be classified into two types:
(A)
Pure substance
(B)
Mixture
(A)
Pure Substance:
A material containing only one type of substance. Pure substance can not be separted into simpler substance by physical method.
e.g.:
Element = Na, Mg, Ca …………etc.
Compound = HCl, H
2
O, CO
2
, HNO
3
, ……etc.
Pure substance is classified into two types:
(a)
Element:
The pure substance containing only one kind of atoms.
It is classified into 3 types (depend on physical and chemical property)
(i)
Metal
→
Zn, Cu, Hg, Ac, Sn, Pb etc.
(ii)
Non-metal
→
N
2
, O
2
, Cl
2
, Br
2
, F
2
, P
4
, S
8
, etc.
(iii)
Metalloid
→
Si, Ge, etc.
(b)
Compound:
It is defined as pure substance containing more than one kind of elements or atoms which are combined together in a fixed proportion by weight and which can be decomposed into simpler substance by the suitable chemical method. The properties of a compound are completely different from those of its constituent element.
e.g.
HCl, H
2
O, H
2
SO
4
, HClO
4
, HNO
3
, etc.
(B)
Mixture:
A material which contains more than one type of substances and which are mixed in any ratio by
weight is called as mixture. The property of the mixture is the property of its components. The mixture
can be separated by simple physical method.
(a)
Homogeneous mixture:
The mixture, in which all the components are present uniformly is called as homogeneous mixture. Components of mixture are present in single phase.
(b)
Heterogeneous mixture:
The mixture in which all the components are present non-uniformly e.g. Water + Sand, Water + Oil, Blood, Petrol etc.
Solved Examples Of Classification Of Matter
Q.1.
Which of the following example of a Homogeneous mixture?
(1)
Water + Alcohol
(2)
Water + Sand
(3)
Water + Oil
(4)
None of these
Sol.
(1)
Water and alcohol are completely mixed and form uniform solution.
Q.2.
Classify the following as pure substances or mixtures. Also separate the pure substances into elements and compounds and divide mixture, into homogeneous and heterogeneous categories:
