Tag: plastic and environment

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Questions Related to plastic and environment

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

To which of the following 4R principle apply most?

  1. Synthetic fibre

  2. Natural fibre

  3. Plastic

  4. Metals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
4R principle was develped for solid waste management and stands for:
Reduce-the use of non-biodegradable materials,
Reuse-materials again and again,
Recycle-use the materials that can be recycled, and
Recovery-of lacking substances
It is mostly applicable to plastics because they are widely used in day-to-day life and are non-biodegradable possesing threat to the ecology.
Option C is correct.
Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following is non biodegradable?

  1. Plastic

  2. Cotton

  3. Paper

  4. Left over food stuff
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodegradation is the disintegration of materials by bacterial, fungi or other biological means.

Most plastics are derived from propylene, a simple chemical component of petroleum. When heated up in the presence of a catalyst, individual chemical units monomers of propylene link together by forming extremely strong carbon-carbon bonds with each other. This results in polymers long chains of monomers called polypropylene.
While cotton, paper and left over food stuff are decomposable by bacterial action so Option A is correct.

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following products can't be decomposed easily?

  1. Acrylic

  2. Polyethene

  3. Plastic

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These substances are non-biodegradable which cannot be decomposed by microorganisms. These products do not break down naturally. When we dispose of them in a garbage pile, the air, moisture, climate, or soil cannot break them down naturally to be dissolved with the surrounding land. They are not biodegradable. However natural waste and products made from nature break down easily when they are disposed of as waste.


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

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following material take the longest to degenerate ?

  1. Paper

  2. Cotton cloth

  3. Tin can

  4. Plastic bags
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plastic bags, because they are complex polymer of long chain hydrocarbons.It is non biodegradable. Plastic bags do not break down naturally. When we dispose them in a garbage pile, the air, moisture, climate, or soil cannot break them down naturally to be dissolved with the surrounding land. However natural waste and products made from nature break down easily when they are disposed as waste.

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following materials is responsible for the cause of animal death?

  1. Paper

  2. Plastic

  3. Chemicals

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Since plastics take several years to decompose, they are not environment friendly and cause pollution. When animals eat them, plastics remain stuck in their organs and cause severe damage, sometimes leading to death.
Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following statement is true about non-biodegradable materials?

  1. They are safe for environment

  2. The wastes are made up of synthetic material

  3. They can be constantly reused

  4. The wastes are made up of natural ingredients
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Non-biodegradable materials are those which do not decompose by natural processes. Non-biodegradable materials are generally synthetic polymers. They are not safe for the environment. Natural fibres degrade very easily in nature. However, non-biodegradable materials are made up of synthetic materials which are not broken down by micro-organisms.

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the following item cannot be recycled?

  1. Plastic milk bottles

  2. Plastic food trays

  3. CD/DVD cases

  4. Plastic cups
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plastic containers are relatively dense and compact which enables them to be easily sorted mechanically, into the different types of plastics. Plastic film and bags are not easily mechanically sorted making them very costly to sort. Also, recycling such plastic is an expensive process.

CVD/DVD cases are made up of thermosetting polymers which can not be recycled.
Option C is correct.