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ALLEN-CHEMISTRY AT A GLANCE-ORGANIC CHEMISTRY
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- which of the following is not categorised as particulate pollutant ?
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- Major contributor of global warming is :
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- Which of the following is not a green house gas ?
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- BOD value less than 5 ppm indicates as water sample to be :
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- Acid rain is due to increase in atomosphric concentration of :
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- Ozone in stratosphere is depleted by:
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- Taj mahal is threatened by pollution from
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- Eutrophication causes reduction in
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- If BOD value of water is 20 ppm then what can we conclude regarding wa...
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- Which is not correct statement for classical smog?
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- The pH of acid rain water is :
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- Which of the following statement is wrong ?
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- Which of the following condition show polluted environment ?
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- The prescibed upper limit concentration of lead in drinking water is a...
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- The condecquence of global warming may be :
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- Which of the following statements about photochmical smog is wrong ?
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