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CBSE Notes 2011-2012 » XI-Chemistry

Environmental Chemistry

What are polar stratospheric clouds (PSCs) ?

Short answer question

What are polar stratospheric clouds (PSCs) ?

What is meant by polar vortex ?

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What is meant by polar vortex ?

What are PCDDs and PCDFs ?

Short answer question

What are PCDDs and PCDFs ?

Which gas caused Bhopal gas tragedy ? Give its formula.

Short answer question

Which gas caused Bhopal gas tragedy ? Give its formula.

What are pesticides ?

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What are pesticides ?

What is meant by deoxygenation ?

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What is meant by deoxygenation ?

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