Previous year question papers of class 10 ,chapter wise science (physics, chemistry, biology) class 10 revised syllabus 2020 -2021 CBSE cbse.nic

 Here is the previous year questions and answers papers of science class 10 chapter wise revised syllabus for class 10 2020 -2021 cbse.nic .

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Chapters..

1. Chemical equations and reactions

2.Acids bases and salts

3.Metals and non Metals

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