CBSE Class 10 Science revision notes for chapter 5 - Periodic Classification of Elements can be checked here to prepare for the Board Exam 2021. These notes are according to the revised syllabus.
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CBSE 10th Science Exam 2021: Check Quick Revision Notes for Chapter 5 (Based on Revised Syllabus)
from Jagran Josh https://ift.tt/3bzvEiu
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