Chapters

Chapter : 6 - Physical and Chemical Changes
भौतिक एवं रासायनिक परिवर्तन

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Physical Changes
भौतिक परिवर्तन

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Chemical changes
रासायनिक परिवर्तन

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Chemical Reaction
रासायनिक अभिक्रिया

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Rusting of Iron
लोहे में जंग लगना

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Crystallisation and Ozone layer
क्रिस्टलीकरण व ओज़ोन परत

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