Thermoplastic

Q. 38.What is the increasing order of strength of intermolecular forces of elastomer fibres thermoplastic and thermosetting polymer?

Q. why is one end of polysaccchride reducing and other end non reducing

Q.

Define thermoplastics and thermosetting polymers with two examples of each.

Q.

Which of the following polymers are thermoplastic?

(a) Teflon

(b) Natural rubber

(c) Neoprene

(d) Polystyrene

Q. Define thermoplastic and thermosetting polymers. Give one example of each.

Q.

Which of the following is a thermosetting polymer?

1. SBR

2. Bakelite

3. Nylon-6

4. Nylon-6, 6

Q. Which of the following are thermoplastic polymers?

1. Polythene, urea-formaldehyde, polyvinyls
2. Bakelite, polythene, polystyrene
3. Urea-formaldehyde, polystyrene, bakelite
4. Polythene, polystyrene, polyvinyls

Q. Briefly explain the formation of bakelite with proper chemical equations

Q. What is the correct order of following in increasing order of their intermolecular forces?

1. Elastomers < Fibre < Plastic
2. Elastomers < Plastic < Fibre
3. Plastic < Elastomer < Fibre
4. Fibre < Elastomer < Plastic

Q. PVC is an example of which kind of plastic?

1. Thermoplastic
2. Thermosetting
3. It is not a type of plastic
4. Both $A$ and $B$

Q. Pick out the incorrect statement amongst the following.

1. Nylon clothing can stand high temperature and are therefore good to wear in summers
2. Thermosetting plastics do not become soft on heating
3. Addition polymers are formed without the elimination of by-product molecules
4. Natural rubber is obtained as latex from rubber trees

Q.

Define thermoplastics and thermosetting polymers with two examples of each.

Q. Based on the following statements, identify the type of polymer-plastic to which it belongs:
a) Polythene loses its shape everytime when it is heated.

Q. what is bio polymer?

Q. Match the polymer in column I with their types given in column II.

Q. 12. types of thermoplastic and thermosetting

Q.

Melmoware are

1. Thermosetting
2. Thermoplastic
3. Both (a) and (b)
4. None of these

Q. Match column I with column II.

Column I	Column II
P. Non-stick coating	(i). Melamine
Q. Flame resistant	(ii). Polystyrene
R. First fully synthetic fibre	(iii). Teflon
S. Thermoplastic	(iv). Nylon

Choose the correctly matched option.

1. (P) - (ii), (Q) - (i), (R) - (iii), (S) - (iv)
2. (P) - (iii), (Q) - (i), (R) - (iv), (S) - (ii)
3. (P) - (ii), (Q) - (iii), (R) - (iv), (S) - (i)
4. (P) - (iii), (Q) - (iv), (R) - (ii), (S) - (i)

Q.

which of the following is thermoplastic ?

a)terylene b)nylon

c)polythene d)all of these

Q. Which one of the following is an example of thermosetting polymers?

1. Neoprene
2. Nylon - $6,6$
3. Buna - N
4. Bakelite

Q. Which of the following polymers does not soften on heating and harden on cooling?

1. Polythene
2. Polyvinyls
3. Polystyrene
4. Urea-formaldehyde resins

Q. are all addition polymers thermoplastic polymers and are all condensation polymers thermosetting polymers?

Q. Which of the following is a thermosetting polymer?

1. Bakelite
2. Buna-S
3. Polyethylene
4. PVC

Q.
Which of the following statements is/are correct about the polymer (E)?

1. It is a thermoplastic polymer
2. It is a thermosetting polymer
3. It is used in the manufacture of adhesives
4. It is used in the manufacture of switches and plugs

Q. Which of the following possess the relative strength of intermolecular forces of attraction between that of elastomers and fibres?

1. Terylene
2. Polythene
3. Bakelite
4. Nylon

Q. Three dimensional polymers with cross links formed in case of:

1. None of these
2. Thermoplastic
3. Thermosetting plastic
4. Both a) and b)

Q. Which of the following polymer has the tendency of decomposing before melting ?

1. Polystyrene
2. PVC
3. Nylon
4. None of the above