Thermoplastic Plastic

Q. Thermocol is produced from which
material?

Q. Which of the following statements regarding thermoplastics and thermosetting plastics are true?

1. Thermoplastics have the ability to withstand heat.
2. Thermosetting plastics have the ability to withstand heat.
3. Thermoplastics have linear molecular chains.
4. Thermosetting plastics have cross-linked molecular chains.

Q. The number inside the resin code of a substance helps us to identify the _______ of plastic it is made of.

1. colour
2. type
3. shape
4. size

Q. "All polymers are macromolecules, but all macromolecules are not polymers." Which of the following compound satisfies the statement ?

1. Polystyrene
2. Lipids
3. Polyethylene
4. Polyvinyl chloride

Q. Choose the incorrect statement regarding synthetic polymers.

Q. Identify the product based on the given features.
I. It is prepared in laboratories.
II. It can be remoulded as per our requirement.
III. It is used for making goods like toys, combs, containers, etc.

1. Melamine
2. PVC
3. Thermocol
4. Bakelite

Q. Question 10
The material which is commonly used for making kitchen containers is

(a) PVC
(b) Acrylic
(c) Teflon
(d) PET

Q.

Question 6
Explain the difference between thermoplastic and thermosetting plastics.

Q.

Define polymerization.

Q. Match the following polymers in column I with their uses given in column II.

Q.

Which one is classified as a condensation polymer?

1. Teflon

2. Acrylonitrile

3. Dacron

4. Neoprene

Q. While analyzing a piece of plastic, John observed that it softened on heating and hardened on cooling. He was also able to mould it into different shapes after heating. Which amongst the following might be that material?

1. Bakelite
2. Terylene
3. Melamine
4. PVC

Q. Why has the use of plastic become a matter of concern these days?

1. Plastic articles are costlier.
2. Plastic is a low-quality material.
3. Plastic does not decompose easily.
4. Plastic is not easily available.

Q. While analyzing a piece of plastic, John observed that it softened on heating and hardened on cooling. He was also able to mould it into different shapes after heating. Which amongst the following might be that material?

1. PVC
2. Bakelite
3. Nylon
4. Melamine

Q. Which among the following has cross-linked chains?

1. Polythene
2. Polyester
3. Bakelite
4. PET

Q.

List 2 properties of poly vinyl chloride (PVC)

Q. Identify the example of thermoplastics.

1. Polyethylene
2. Bakelite
3. Polyvinyl chloride
4. Melamine

Q.

Plastic bottles are commonly made of PET. What does PET stand for?

1. Polyethylene Terephthalate

2. Polythene Ethane Tetraphthalate

3. Polyester Ethane Tetraphthalate

4. Polyester Ethyne Tetraphthalate​

Q. Plastics which get deformed easily on heating and can be bent easily are known as ___________.

Q.

The monomers used for getting the polymers respectively:
(i) Teflon (ii) Bakelite

1. 
   

   (i) Tetrafluoroethylene (ii) Formaldehyde and phenol

2. (i) Tetrafluoroethylene (ii) Vinyl chloride
3. (i) Formaldehyde and phenol (ii) Vinyl chloride
4. (i) Vinyl chloride (ii) Formaldehyde and phenol

Q. Polypropylene is not used in:

1. clothes
2. ropes
3. heat resistance plastics
4. parachute ropes

Q. Which among the following has cross-linked chains?

1. Bakelite
2. Polyester
3. PET
4. Polythene

Q. Which among the following has cross-linked chains?

1. Polyester
2. PET
3. Polythene
4. Bakelite

Q. While analyzing a piece of plastic, John observed that it softened on heating and hardened on cooling. He was also able to mould it into different shapes after heating. Which amongst the following might be that material?

1. Bakelite
2. Melamine
3. PVC
4. Terylene

Q. Which among the following has cross-linked chains?

1. PET
2. Bakelite
3. Polythene
4. Polyester

Q. Which of the following statements are correct regarding Teflon?

1. Used as a coating for the inner surface of the cookware
2. The name of its monomer is tetrafluoroethene
3. It is a monomer
4. The general formula for tetrafluoroethene is $nC{F}_2=C{F}_2$

Q. Match the column A and B

Column A	Column B
(i) Thermoplastics	(a) Handles of utensils, floor tiles
(ii) Thermosetting plastics	(b) Melamine
(iii) Biodegradable	(c) Teflon
(iv) Fire proof plastic	(d) Wood
(v) Oil and water do not stick	(e) Combs, containers

1. i-e, ii-a, iii-d, iv-b, v-c
2. i-d, ii-e, iii-a, iv-b, v-c
3. i-c, ii-b, iii-a, iv-e, v-d
4. i-a, ii-d, iii-b, iv-c, v-e

Q. Which amongst the following is used to make the pipes used to supply water?

1. Melamine
2. Bakelite
3. Polystyrene
4. Polyvinyl chloride

Q.

Which of the following articles made of plastics 'can be recycled' and which 'cannot be recycled'?

1. Can be recycled: Plastic toys, Plastic covering on electrical wires, Plastic bottles

   Cannot be recycled: Telephone instruments, Cooker handles, Electric switches

2. Can be recycled: Telephone instruments, Cooker handles, Plastic bottles

   Cannot be recycled: Electric switches, Plastic toys, Plastic covering on electrical wires

3. Can be recycled: Plastic toys, Plastic bottles, Electric switches, Telephone instruments

   Cannot be recycled: Plastic covering on electrical wires, Cooker handles

4. Can be recycled: Plastic toys, Plastic covering on electrical wires, Plastic bottles, Cooker handles

   Cannot be recycled: Telephone instruments, Electric switches

Q. Identify the example of thermoplastics.

1. Polyethylene
2. Bakelite
3. Polyvinyl chloride
4. Melamine