What are the types of substances in Class 9?
A homogeneous material that contains particles of only one kind and has a definite set of properties is called a pure substance.
e.g. Iron, silver, oxygen, sulphur, Carbon dioxide etc., are pure substances because each of them has only one kind of particles.
Get the detailed notes of class9 chapter "Is matter around us pure" from the below link
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Best Recommended Books For JEE Mains And Advanced | Physics Wallah
To crack JEE Mains and Advanced, you have to start with strong basics. You need to have a good understanding of Physics, Chemistry, and Mathematics which is essential. After this, you need to have strong fundamentals in the subjects like English, Computer Science, and Biology. Further, You need to do self-study for various competitive exams. Here we will suggest some good books for JEE Mains and Advanced as recommended by toppers
Physics is the subject of experiments and research. The more we experiment the better way we learn it. So keeping in mind the importance of physics in our daily life we have provided a complete list of all physics articles for the students of all classes.
Olympiad Exam 2022-23 Details for NSO, IMO, IEO, IGKO...
Olympiad Examinations are held at the national and international levels, where students from different schools compete with each other and check their knowledge and basic understanding level. The examination is related to the academic field with a grade-level examination.
Advantages and Disadvantages of Friction Class 8 Physics Wallah Notes
Physics Wallah provides the complete notes of class 8 Advantages and Disadvantages of friction with a diagrammatic representation so that students find it easy to recall during their exams
Chemistry as a subject is equipped with a lot of concepts and learning resources. While preparing for chemistry you will encounter lots of chemistry doubts which needed to be properly addressed. Chemistry is the subject of formulas, reactions, and energy. A different approach is required to have a good understanding of chemistry.
Know the detailed information about the topic, in the below link
