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WorksheetsSynthetic Fibres and Plastics
Total questions: 12
Worksheet time: 8mins
What is the singular unit of polymer known as?
Poly
Monomer
Mer
Fabric
Which of the following is a synthetic fibre?
Cotton
Rayon
Nylon
Silk
Cotton is made up of a polymer called cellulose which is made up of ------- units.
(a)
What is the full form of PET?
Personal Electronic Transactor
Positron Emission Tomography
Poly Ethylene Teraphthalate
Parent Effectiveness Training
Esters are chemicals that give ------ their -----
(a)
Synthetic Fibres are made of ------ due to which it is not advised to wear them while cooking
Chemicals
Glucose
Petrochemicals
Diesel
Choose all the wrong statements.
Plastics can be linear and cross linked.
The handles of cooking utensils are made of thermoplastics which don't melt.
Biodegradable substances are toxic to Mother Earth.
Plastics are used in the health care industry.
The plastic material animals swallow chokes their -------------- system.
(a)
Select all that are true.
Cellulose is a natural polymer.
Polycot is the mixture of polythene and ester.
Polymers cannot occur in nature.
Rayon was made from petrochemicals.
Paheli once observed that her mother was changing her dress as soon as came home before cooking. She wonders why. Can you tell her?
She was wearing a non-metal.
She may have been wearing nylon clothes. They are highly not flammable.
She was wearing synthetic fibre. Since they are made from petrochemicals, they melt and stick to the body.
Why is acrylic cheaper?
It is natural.
It is synthetic.
It is less durable.
Quality is very bad.
What do poly and mer mean in Greek?
(a)
