Tag: plastic waste

Questions Related to plastic waste

Plastics are mainly used by everyone because :

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  1. They are cheap

  2. Easy to handle

  3. Do not break

  4. Light weight

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Correct Option: A,B,D
Explanation:

Plastics find many applications in day-to-day life because of various reasons as :


1) They are economical, thus are cheap.
2) Easy to handle unlike ceramics and glass which are brittle.
3) Light weight materials and easy to carry.
4) High durability but they are breakable.

Therefore option A, B and D are correct.

Plastic containers can resist decomposition for:

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  1. 50000

  2. 3000

  3. 1000

  4. 40000

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Correct Option: C
Explanation:

Plastic waste is one of many types of wastes that take too long to decompose. Normally, plastic items can take up to 1000 years to decompose in landfills. But plastic bags we use in our everyday life take 10-1000 years to decompose, while plastic bottles can take 450 years or more.

Which of the following takes so many years to degrade?

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  1. Jute

  2. Cotton

  3. Wool

  4. Plastic

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Correct Option: D
Explanation:
Non-biodegradable materials are not degraded by natural factors such as micro-organisms such as bacteria, UV radiations etc. They stay longer and difficult to degrade.
Jute, cotton and wool are made from natural fibre and are therefore biodegradable while plastic is a synthetic polymer and is non-biodegradable waste.
option D isc orrect

We come to a conclusion, that plastics are bad conductors of electricity from the followings:

chemistry man made materials environmental impact: plastics plastic plastic plastic waste garbage in, garbage out

  1. Refrigerators and freezers have a plastic foam core.

  2. Electrical wires have a plastic covering.

  3. Cooking pans have plastic handles.

  4. It is used to prepare parachutes.

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Correct Option: B

Which of the following substance is bio-degradable?

chemistry man made materials environmental impact: plastics plastic plastic plastic waste garbage in, garbage out

  1. cloth

  2. thermosetting plastic

  3. thermoplastic

  4. PVC pipes

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Correct Option: A
Explanation:
Biodegradable wastes are such waste materials which are and can be degraded by natural factors like microbes (e.g. bacteria, fungi and few more), abiotic elements like temperature, UV, oxygen, etc. Example: kitchen wastes and other natural wastes. Cloth is a natural polymer made from cellulose, cotton, silk, wool etc and is biodegradable while plastics (thermoplastic, thermosetting plastics, PVC) are synthetic polymers and are non-biodegradable
option A is correct

These processes can be used to prevent health hazards of plastics :

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  1. Reduce

  2. Reuse

  3. Recover

  4. Recycle

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Correct Option: A,B,C,D
Explanation:

 

A number of waste prevention techniques are available, and they are commonly summarized as the so-called 4Rs: reduction, reuse, recycling and recovery. 

Reduction, reuse and recycling are known in the industry as the 3Rs. 

We must reduce the use of resources as much as possible and save them for the future generation. Reducing usage is a method of conservation of resources.

Therefore, A, B, C and D option are correct.

Burning of plastic causes:

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  1. water pollution

  2. air pollution

  3. sound pollution

  4. All of these

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Correct Option: B
Explanation:

Burning of plastic produces carbon dioxide which causes heavy air pollution. 

Like synthetic fibres, plastic is also a:

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  1. polymer

  2. polythene

  3. polycot

  4. acrylic

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Correct Option: A

What are the two types of arrangement in plastics ?

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  1. Linear, Horizontal

  2. Horizontal, Cross-linked

  3. Linear, Cross-linked

  4. Linear, Vertical

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Correct Option: C

Which of the following statement is true about PVC (polyvinyl chloride) and polythene?

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  1. They are thermoplastics

  2. They are thermosetting plastics

  3. They are examples of natural substances

  4. They are natural fibres

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Correct Option: A
Explanation:

Thermoplastics on heating get deformed (its shape and size can be altered) and thus can also be bent. On the other hand, thermosetting plastics cannot be bent once moulded. Some examples of Thermoplastics are – Polythene and PVC. Some examples of Thermosetting plastics are – Bakelite and Melamine.


Hence, the correct option is $\text{A}$