Environmental Chemistry
Atmospheric, water and soil pollution; greenhouse effect; ozone layer; green chemistry.
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Take a full mock →Q1 · Environmental Chemistry · HARD
A water sample from an industrial area has a BOD value of 45 mg/L. If the dissolved oxygen content is 3.5 mg/L and the saturation DO at that temperature is 9.0 mg/L, what is the approximate oxygen deficit in this water sample?
Q2 · Environmental Chemistry · MEDIUM
Which of the following statements about photochemical smog is correct?
Q3 · Environmental Chemistry · EASY
Which international agreement aims to phase out the production and consumption of ozone-depleting substances like chlorofluorocarbons (CFCs)?
Q4 · Environmental Chemistry · MEDIUM
Green chemistry principle emphasizes atom economy. For the synthesis of phenol from benzene, which route has the highest atom economy?