Green Chemistry - Dr. Pushpa Sahni, Dayalbagh Educational Inst

Name the conventional solvent that was used for dry cleaning purposes which later confirmed to be a suspected carcinogen

• Supercritical Carbon Dioxide

• Phenanthrene

• Tetrachloroethene

• Benzene aldehyde

Which of the following are among the 12 Principles of Green Chemistry?

• Design commercially viable products

• Use only new solvents

• Use catalysts, not stoichiometric reagents

• Re-use

Replacement of liquid CO₂ by halogenated solvent will result in less harm to groundwater.

• True

• False

Identify the non-toxic and green solvent

• Liquefied carbon dioxide

• Benzene

• Carbon tetrachloride

• Toulene

Which of the following is a greener route to produce ethanol commercially?

• Catalytic cracking of ethanol

• Oxidation of ethanne with an ionic catalyst

• Steam reforming of methanol

• Dehydrogenation of ethylene

Which of the following is not a principle of Green Chemistry?

• Green solvents and auxiliaries

• Use of renewable livestock

• Hazardous chemical synthesis

• Design for energy efficiency

Green chemists reduce risk by?

• Reducing the hazard inherent in a chemical product or process

• Minimizing the use of all chemicals

• Inventing technologies that will clean up toxic sites

• Developing recycled products

Environmental benefits of green chemistry include?

• Fewer raw materials and natural resources used

• Cleaner production technologies & reduced emissions

• Smaller quantities of hazardous waste to be treated and disposed of

• All of the above

Green chemistry is more expensive than traditional chemistry?

• True

• False

• Same

• None of them