Polyethene

Q.

The monomer of polystyrene is

Q.

The compound that intribits the growth of polymer chain during Vinyl polymerisation, is

1. Carbon tetrachloride

2. Benzo phenone

3. Carbone dioxide

4. P-benzo quinone

Q.

Give some uses of polymers.

Q. When $100$ g of ethylene polymerises entirely to polyethene, the weight of polyethene formed as per the equation, $nC{H}_2=C{H}_2\to (C{H}_2-C{H}_2{)}_n$ is :

1. $100$ g
2. $\frac{n}{2}$ g
3. $100n$ g
4. $\frac{100}{n}$ g

Q.

Give three advantages of polythene over natural materials.

Q. Which of the following is a fully fluorinated polymer?

1. Thiokol
2. Teflon
3. Neoprene
4. PVC

Q. The monomer unit of polyethene is?

1. $C{H}_2=C{H}_2$
2. $C{F}_2=C{F}_2$
3. $C{H}_2=CHCN$
4. $C{H}_2=CHCl$

Q. Identify the monomer in the following polymeric structure.

A


B

Q.

Match the polymer in Column I with correct monomers of Column II.

	Column I		Column II
$\left(i\right)$	High Density polythene	(a)	Isoprene
$\left(ii\right)$	Neoprene	(b)	Tetraflouroethene
$\left(iii\right)$	Natural Rubber	(c)	Chloroprene
$\left(iv\right)$	Teflon	(d)	Acryolonitrile
$\left(v\right)$	Acrilan	(e)	Ethene

Q.

Which of the following properties is/are true for a silicone polymer?

A) Thermally resistant and have low dielectric constant

B) Resistant towards oxidation and used in grease

C) Biocompatible

D) Hydrophobic in nature

1. a) A & B

2. b) A, B & C

3. c) B, C, & D

4. d) A, B, C & D

Q. Hard plastic covers of telephone is made from the unit(s):

1. Methylmethacrylate
2. Vinylacetate
3. Neoprene
4. Phenol and formaldehyde

Q. What are the monomeric
repeating units of Nylon−$6$ and Nylon−$6$, $6$?

Q. The monomer unit of polyethene is?

1. $C{F}_2=C{F}_2$
2. $C{H}_2=C{H}_2$
3. $C{H}_2=CHCl$
4. $C{H}_2=CHCN$

Q. Which of the following statements about low density polythene is false?

1. It is a poor conductor of electricity
2. Its synthesis requires dioxygen or a peroxide initiator as a catalyst
3. Its synthesis requires high pressure
4. It is used in the manufacture of buckets, dustbins etc

Q. Monomer of polythene is :

1. isoprene
2. propene
3. chloroprene
4. ethene

Q. Which of the following can be polymerised to polythene?

1. Ethene
2. Ethyl acetate
3. Ethene as well as Ethylene
4. Ethylene

Q. Write the names and structures of the monomers of the following polymers:
(i) Buna - S (ii) Neoprene

Q. In case of natural rubber, the monomeric units are:

1. isoprene
2. propene
3. 1, 3-butadiene
4. vinyl chloride

Q.

Match materials given in Column I with the polymers given in Column II.

	Column I		Column II
(i)	Acrilan	(a)
(ii)	Polystyrene	(b)
(iii)	Neoprene	(c)
(iv)	Novolac	(d)
(v)	Buna-N	(e)
		(f)

Q. Which of the following polymers contains $1,3$-butadiene as one of the monomers ?

1. Nitrile rubber
2. Butyl rubber
3. SBR
4. ABS plastic

Q. Chloroprene is used in making

1. petrol
2. synthetic rubber
3. plastic
4. All of the above

Q. STATEMENT-1 : PMMA (Polymethyl methacrylate) is used for making lenses and light covers.
STATEMENT-2 : It has excellent light transmission properties.

1. STATEMENT-1 is True, STATEMENT-2 is True, STATEMENT-2 is a correct explanation for STATEMENT-1
2. STATEMENT-1 is True, STATEMENT-2 is True, STATEMENT-2 is NOT a correct explanation for STATEMENT-1
3. STATEMENT-1 is True, STATEMENT-2 is False
4. STATEMENT-1 is False, STATEMENT-2 is True

Q.

Match the polymer in Column I with correct monomers of Column II.

	Column I		Column II
$\left(i\right)$	High Density polythene	(a)	Isoprene
$\left(ii\right)$	Neoprene	(b)	Tetraflouroethene
$\left(iii\right)$	Natural Rubber	(c)	Chloroprene
$\left(iv\right)$	Teflon	(d)	Acryolonitrile
$\left(v\right)$	Acrilan	(e)	Ethene

Q. Select the properties which can be attributed to polyethene.

1. Addition polymerisation
2. Homopolymer
3. Nonbiodegradable
4. High strength

Q.

10) Plastics are polymers.

1. True
2. False

Q. Which of the following polymers, need atl east one diene monomer for their preparation?

1. Dacron
2. Novolac
3. Neoprene
4. Teflon

Q. The treatment of $C{H}_{3}MgX$ with $C{H}_{3}C\equiv C-H$ produces:

1. $C{H}_{3}MgX=C-C{H}_3$
2. $C{H}_{3}CH=CHC{H}_3$
3. $C{H}_4$
4. $(C{H}_3{)}_{2}C=C{H}_2$

Q. Select the properties which can be attributed to polyethene.

1. Addition polymerisation
2. Homopolymer
3. Nonbiodegradable
4. High strength

Q. Which of the following statements is not correct?

1. Caprolactam is the monomer of nylon-6.
2. Terylene is a polyester polymer.
3. Phenol formaldehyde resin in known as bakelite.
4. The monomer of natural rubber is butadiene.