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CBSE Notes 2011-2012 » XI-Chemistry

Environmental Chemistry

What is meant by polar vortex ?

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
Short answer question

What is meant by polar vortex ?

What are polar stratospheric clouds (PSCs) ?

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
Short answer question

What are polar stratospheric clouds (PSCs) ?

What are PCBs?

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
Short answer question

What are PCBs?

What are PCDDs and PCDFs ?

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
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What are PCDDs and PCDFs ?

Which gas caused Bhopal gas tragedy ? Give its formula.

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
Short answer question

Which gas caused Bhopal gas tragedy ? Give its formula.

What are pesticides ?

Submitted by mrs_bakshi on Sun, 12/25/2011 - 01:42
Short answer question

What are pesticides ?

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