Green Chemistry
Sustainability is:- Development which meets the needs of people today without worrying how future generations can meet their needs. TRUE OR FALSE?
Natural gas is a renewable feedstock. TRUE OR FALSE?
Drugs, food additives and pesticides are all fine chemicals. TRUE OR FALSE?
The optimum temperatures at which genetically modified E Coli converts waste into ethanoic acid are between 25 o C to 37 o C. TRUE OR FALSE?
Refluxing concentrates ethanol to make brandy and whisky. TRUE OR FALSE?
PET bottles are recycled to make fibres and non-food containers. OPEN OR CLOSED RECYCLING?
PET bottles are recycled to make new containers for food and drink. OPEN OR CLOSED RECYCLING?
Which of the following are bulk chemicals? a.ammonia b.drugs c.ethene d.food additives
Which of the following are renewable feedstocks? a.crude oil b.elephant grass c.salt d.starch
The raw material for making synthetic ethanol is:- a.crude oil b.municipal waste c.plant sugars d.sugar cane
Which is the most sustainable method of dealing with waste in your “wheelie bin”? a.incinerate or burn b.landfill c.recycle d.reduce the amount of waste
The advantage of making ethanol by the synthetic route is:- a.the purification process is expensive b.there is 100% atom economy c.the raw material is a fossil fuel d.toxic benzene is needed in the drying process
Which are the best examples of reducing waste? a.dumping waste into landfill b.burning waste gas without using the energy c.recycling polymer based carpets d.using PET bottle to make fibres
From what do we get feedstocks?
What are the three main uses of ethanol?
Put these stages in the correct order to sumarise a chemical process.
Why do biocatalysts lower the energy demand for a chemical process?
Why is a process which contains fewer separation and purification processes greener?
What is the disadvantage of closed loop recycling?
Extraction of iron and carbon by a blast furnace cleaning system is a “sustainable change”. How?