General Knowledge > General Science
CHEMISTRY MCQs
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Answer: Option B. -> Brown bottles stops the passage of light through it
Answer: Option D. -> Blue
Answer: Option C. -> Oxidising property
Answer: Option C. -> Hydrogen peroxide
Answer: Option A. -> Reduction
Answer: Option B. -> Hydrogen peroxide
Answer: Option A. -> The action of ultraviolet rays on oxygen
Answer: Option C. -> Checking the penetration of ultraviolet rays to the earth