11 VCE Green Chemistry principles

What is the primary goal of green chemistry?

• To increase chemical production

• To design safer and more sustainable chemical products and processes

• To maximise profits in the chemical industry

• To reduce the use of chemicals altogether

Which of the following is NOT a principle of green chemistry?

• Prevention of wastes

• Designing safer chemicals

• Maximising the use of non-renewable resources

• Design for energy efficiency

What does 'atom economy' refer to in green chemistry?

• Minimising the number of atoms used in a reaction

• Maximising the incorporation of reactant materials into the final product

• Reducing the atomic weight of products

• Balancing the number of atoms on both sides of a chemical equation

In the context of green chemistry, what is the primary purpose of catalysts?

• To increase reaction speed only

• To generate the same desired products with less waste and energy

• To make reactions more complex

• To increase the yield of by-products

Which economic model operates on a 'take-make-dispose' principle?

• Circular economy

• Green economy

• Linear economy

• Sustainable economy

What is the main characteristic of a circular economy?

• t focuses on single-use products

• It emphasises the optimal use and re-use of resources

• It prioritises the extraction of new raw materials

• It encourages the disposal of products after use

Why is the use of renewable feedstocks important in green chemistry?

• They are always cheaper than non-renewable feedstocks

• They produce more waste

• They are more readily available than fossil fuels

• They help conserve non-renewable resources and reduce environmental impact

What does 'design for degradation' mean in green chemistry?

• Designing products that never degrade

• Creating products that break down into harmful substances

• Designing products that break down into harmless substances after use

• Maximising the lifespan of products

Which of the following best describes the relationship between green chemistry and sustainability?

• Green chemistry opposes sustainability

• Green chemistry is unrelated to sustainability

• Green chemistry supports and promotes sustainability

• Sustainability is a subset of green chemistry

What is a key challenge in applying green chemistry principles to chemical manufacturing?

• Reducing production output

• Eliminating all chemical processes

•  Balancing safety, sustainability, and economic viability

• Increasing the use of non-renewable resources