GNAF chemist

why synthetic rubber become main choice for manufacturing industries?

• not being reliant on the weather or diseases like rubber trees

• reliant on the weather or diseases like rubber trees

• less resistant to high temperature

• less impermeable to water

There is 2 type of synthetic rubber that can be used to manufacture gloves which are...

• styrene-butadiene rubber (SBR)

• silicone rubber

• neoprene

• nitrile rubber

what type of synthetic rubber is suitable to produce tyre?

• nitrile rubber

• styrene-butadiene rubber (SBR)

• silicone rubber

• neoprene

what is the disadvantages of synthetic rubber?

• less resistant to heat

• takes a short time to decompose biologically

• takes a very long time to decompose

• electric conductor

Ali is an athlete. He needs a shoes that has high abrasion resistance. which shoes should he choose?

• shoes with thiokol soles

• shoes with neoprene soles

• shoes with silicone rubber soles

• shoes with styrene-butadiene rubber (SBR) soles

which one do you prefer?

• synthetic rubber

• natural rubber

what are the way to overcome the issue of reducing the disposal of rubber material waste? (choose 2)

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improper disposal of synthetic rubber from vehicle tyres causes pollution. which of the following properties causes this problem?

• non-biodegradable

• do not corrode

• resistant to oxidaton

• resistant to chemical solvents

Which of the following is NOT the method that can reduce the disposal of rubber tyres?

• use discarded tyres to generate electricity

• turn old tyres into stools

• stick a new layer of rubber to old tyres

• burn discarded tyres

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