Tag: garbage in, garbage out

Quizzes (7) Questions (173)

Questions Related to garbage in, garbage out

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

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

  1. They are thermoplastics

  2. They are thermosetting plastics

  3. They are examples of natural substances

  4. They are natural fibres
Reveal answer Fill a bubble to check yourself
A Correct answer
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 $\text{A}$

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

A material which is not easily decomposed by natural processes is termed as :

  1. biodegradable material

  2. non-biodegradable material

  3. recycled material

  4. natural material
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A material which is not easily decomposed by natural processes is termed as $\text {non-biodegradable material}$. Examples are polyethene, PVC, PS. It takes many years for decomposition. Hence, option B is correct.

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

Which of the following are uses of plastics in health care industry?

  1. Packaging of tablets

  2. Stitching wounds

  3. Syringes

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

Plastics in health care industry are used in packaging of medicines;plastic threads are used for stitching wounds. Also syringes, gloves and many kind of medical instruments are made up of plastic.

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

Why plastic containers are favoured for storing food?

  1. Plastics are light in weight

  2. Plastic is a strong and durable material

  3. Plastics are easy to handle

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

Plastics are used to store food because:
(i) Plastics are light in weight.
(ii) Plastic is a strong and durable material and
(iii) plastics are easy to handle.

Multiple choice chemistry man made materials environmental impact: plastics plastic plastic plastic waste garbage in, garbage out
Telephone instruments, plastic toys, ball point pens, plastic bowls are examples of:

  1. Thermoplastics

  2. Thermosetting plastic

  3. Polyester

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Telephone instruments, plastic toys, ball point pens, plastic bowls  are thermoplastics and so can be recycled.
Cooker handles, carry bags, plastic covering on electric wire, plastic chains etc are thermosetting plastics and so cannot be recycled.

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

Which plastic is commonly used as carry bags?

  1. Polythene

  2. Polyester

  3. PET

  4. Acrylic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polyethylene is a thermoplastic polymer consisting of long hydrocarbon chains. Polyethylene or polythene is the most common plastic. Its primary use is in packaging (plastic bag, plastic films, containers including bottles, etc.).