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Q. Nitrogen in water is commonly found in the form of
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Q. Fill in the blank with the most appropriate option. Ethanol is denatured to ___.
Q. The pH of fresh groundwater slightly decreases upon exposure to air because
Q. Which one of the following is not required for the formation of photochemical smog?
Q. The pollutant responsible for ozone holes is _______
Q. Hypo, used in photography, is chemically
Q. Air is said to be saturated when :
Q. The other names of gammaxene are- I. γ - BHC II. Lindane III. Aldrin
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