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6.1 Improving processes and products

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Question 41

A manufacturer can recycle one batch of material while clearing a disused factory.

Recycling projectMass of material (tonnes)Energy to make 1 tonne from raw materials (GJ)Energy to make 1 tonne from recycled material (GJ)
Copper cable127015
PET plastic sheet248035
Cardboard packaging702515
Zinc roofing255020

The manufacturer has a target of saving at least 900 GJ of energy.

Which recycling project meets this target?

[1]
A

Copper cable

B

Cardboard packaging

C

Zinc roofing

D

PET plastic sheet

Markscheme

6.1 Improving processes and products Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Improving processes and products

136 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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