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Class 9 - Is Matter around us Pure
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Class 9 - Is Matter around us Pure

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matter is anything that has mass and occupies volume. Matter is commonly said to exist in four states ( or phases) : solid, liquid, gas and plasma. However, advances in experimental technique have realized other Phases. Matter can be broadly divided into two major groups, 'Pure' and 'Impure'. In chemistry, the term 'purity' acquires quite a different meaning from what we understand it to be in our day-to-day life. There is no specific syllabus for Problem Solving Assessment (CBSE-PSA) Class 9. It will assess on Quantitative Reasoning, Qualitative Reasoning and Language Conventions. Language Conventions covers uses of Practical English Grammar, Vocabulary and Comprehension reading. Problem Solving Assessment for CBSE Class 9, NCERT Class IX.
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