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Q.

Which of the following in not an example of green chemistry?

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a

Reacting methylamine and phosgene to produce methyl isocyanate

b

Replacement of CFCs by CO2 as blowing agent in the manufacture of polystyrene foam sheets

c

Catalytic dehydrogenation of the di ethanol amine without using cyanide and formaldehyde

d

Replacement of organotins by 'sea-nine' as antifouling compound in sea marines.

answer is A.

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Detailed Solution

Reaction of methylamine and phosgene to produce MIC (Methyl isocyanate) is not an example of green chemistry.
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