Polymerization

Q. Is the given equation below an example for substitution reaction:
CH4+Cl2 -----------> CH3Cl+HCl
(Sunlight)

Q. Question 7
Oils on treating with hydrogen in presence of palladium or nickel catalyst form fats. This is an example of
(a) Addition reaction
(b) Substitution reaction
(c) Displacement reaction
(d) Oxidation reaction

Q.

Which one of the following can be used as monomer in a polymerisation reaction?

[MP PMT 1993]

1. CH₃CH₂Cl
2. CH₃ CH₂OH
3. C₃H₆
4. C₆H₆

Q.

The polymer of which of the following molecule is found in non- stick coating of cookware?

1. Ethene
2. Vinyl chloride
3. Tetrafluoroethene
4. Isoprene

Q.

The process in which a large number of simple molecules combine to form the complex molecule is known as addition reaction.

1. True

2. False

Q. Which of the following compound(s) can form polymers?

1. Propane
2. Chloroethene
3. Isoprene
4. Tetrafluoroethene

Q. What is polyethene? Is it a hydrocarbon?How is the bond formation?

Q.

Which of the following statement(s) is/are correct regarding Teflon?

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

Q. Monomers of ethene in thousand numbers react together in addition polymerization to produce

1. All of them
2. Polyesters
3. Polyamides
4. Polyethene

Q.

Identify the type of reaction.

1. Substitution reaction

2. Addition reaction

3. Polymerisation reaction

4. Thermal cracking reaction

Q. Choose the correct answer:
The formation of 1, 2-dibromoethane from ethene and bromine is an example of:
(a) Substitution
(b) Dehydration
(c) Dehydrohalogenation
(d) Addition

Q. Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers.
$\begin{array}{cc}ColumnI& ColumnII\\ \left(i\right)\text{Nylon-6}& \left(a\right)\text{free radical polymerisation}\\ \left(ii\right)\text{PVC}& \left(b\right)\text{Ziegler-Natta plymerisation or coordination polymerisation}\\ \left(iii\right)\text{HDP}& \left(c\right)\text{Anionic polymerisation}\\ & \left(d\right)\text{Condensation polymerisation}\end{array}$

1. (i) - (c), (ii)-(a), (iii) - (b)
2. (i) - (d), (ii)-(b), (iii) - (a)
3. (i) - (a), (ii)-(b), (iii) - (d)
4. (i) - (d), (ii)-(a), (iii) - (b)

Q. The polymer of which of the following molecule is found in natural rubbers?

1. Vinyl chloride
2. Tetrafluoroethene
3. Isoprene
4. Ethene

Q.

The given reaction is an example of

1. substitution reaction
2. addition reaction
3. thermal cracking
4. polymerisation reaction

Q.

Match the following polymers with their usage:

$\begin{array}{cc}\text{Polymer}& \text{Usage}\\ \text{(i) Polyvinylchloride}& \text{(a) Non- stick coating}\\ \text{(ii) Polyethene}& \text{(b) Plastic}\\ \text{(iii) Polyisoprene}& \text{(c) Pipes}\\ \text{(iv) Teflon}& \text{(d) Natural rubber}\end{array}$

1. (i)- (b), (ii)- (a), (iii)- (d), (iv)- (c)

2. (i)- (c), (ii)- (b), (iii)- (d), (iv)- (a)

3. (i)- (d), (ii)- (a), (iii)- (c), (iv)- (b)

4. (i)- (a), (ii)- (b), (iii)- (c), (iv)- (d)

Q. The polymer of which of the following molecule is found in plastic bags?

1. Propene
2. Butene
3. Ethene
4. Hexene

Q. Which of the following reaction require an oxidizing agent?

1. ${CH}_3-CH={CH}_2\to {CH}_3-{CH}_2-{CH}_3$
2. ${CH}_3-{CH}_{2}OH\to {CH}_3-{CH}_{2}Cl$
3. ${CH}_3-{CH}_{2}Cl\to {CH}_3-{CH}_3$
4. ${CH}_3-{CH}_{2}OH\to {CH}_{3}CHO$

Q. Find out to which type of chemical reaction the following changes belong (Substitution reaction, addition reaction, polymerization, thermal cracking)
(a) Methane $\to$ Chloromethane
(b) Propene $\to$ Polypropene
(c) Hexan $\to$ Butene + ethane
(d) Ethane $\to$ 1, 2, dichloroethane

Q. Is there any process named as HALL HEROULT process?

Q. Analyze the reactions and answer the following question:

Q.

The polymer of ethene is known as

1. Tetrafluroethene

2. Polyisoprene

3. Polyvinylchloride

4. Polyethene

Q. The polymer of which of the following molecule is found in non- stick coating of cookware?

1. Ethene
2. Tetrafluoroethene
3. Vinyl chloride
4. Isoprene

Q. PVC polymer can be prepared by which of the monomers?

1. $C_6{H}_{5}CH=C{H}_2$
2. $C{H}_{3}CH=C{H}_2$
3. $H_{2}C=CHCl$
4. $H_{2}C=C{H}_2$

Q. The conversion of propene to polypropene is a type of:

1. substitution
2. combustion
3. polymerisation
4. addition

Q.

The polymer of which of the following molecule is found in plastics?

1. Hexene
2. Butene
3. Propene
4. Ethene

Q.

Teflon is a polymer obtained from

1. Tetraflurochloroethane

2. Tetrafluoroethane

3. Tetrafluoroethylene

4. Tetrafluoroethene

Q.

The polymer of which of the following molecule is found in non- stick coating of cookware?

1. Ethene
2. Vinyl chloride
3. Tetrafluoroethene
4. Isoprene

Q.

Natural rubber is a polymer obtained from

1. Isoprene

2. Tetrafluoroethylene

3. Ethene

4. Neoprene