Polyacrylonitrile

Q. 11. What is the major product when 2-methylbutane under goes chlorination?

Q.

The commercial name of polyacrylonitrile is ...........

(a) dacron

(b) orlon (acrilan)

(c) PVC

(d) bakelite

Q. aniline, otho-methyl-Aniline, meta-methyl-Aniline, Para-methyl-aniline compare the basic strengt

Q.

Polyester is a natural fiber.

1. True
2. False

Q. Which of the following can be used as substitute for wool in synthetic fabric?

1. polyethylene
2. polyacrylonitrile
3. Teflon
4. polyvinyl chloride

Q. Which of the following is correct statement? (1) Low density polyethylene is obtained under high pressure and room temperature (2) High density polyethylene has highly branched structure (3) High density polyethylene is obtained at atmospheric pressure (4) High density polyethylene is more flexible than low density polyethylene

Q. Which of the following is incorrectly matched? 1) PVC – Vinyl chloride 2) Polythene – Ethane 3) Teflon – Tetrafluoroethene 4)Cellulose – Glucose

Q. Which one is a polymer compound?

1. $S{O}_2$
2. $C{O}_2$
3. $C{H}_4$
4. $PVC$

Q.

Which of the following represents the example of homopolymer?

1. Glyptal

2. Polymethyl-methacrylate

3. Bakelite

4. Nylon-66

Q. What are food storage polysaccharides?

Q. The polymer that is used as a substitute for wool in making commercial fibres is

<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> NEET ODISHA 2019

1. nylon-6, 6
2. polyacrylonitrile
3. Melamine
4. Buna-N

Q. Which one of the following is the structure of polyacrylonitrile ?

1. ${(-C{H}_2-\underset{CN}{\underset{|}{C}H}-)}_n$
2. ${(-C{H}_2-\stackrel{Cl}{\stackrel{|}{\underset{Cl}{\underset{|}{C}}}}-)}_n$
3. ${(-C{H}_2-\stackrel{CN}{\underset{COOC{H}_3}{\underset{|}{\stackrel{|}{C}}}}-)}_n$
4. ${(-C{H}_2-\underset{Cl}{\underset{|}{C}}H-)}_n$

Q. Natural rubber is a polymer of

1. Styrene
2. Ethyne
3. Butadiene
4. Isoprene

Q. $Buna-N$, a synthetic rubber is copolymer of:

1. $H_{2}C=CH-CN$ and $H_{2}C=CH-CH=C{H}_2$
2. $H_{2}C=CH-\stackrel{\stackrel{Cl}{|}}{C}=C{H}_2$ and $H_{2}C=CH-CH=C{H}_2$
3. $H_{2}C=CH-CH=C{H}_2$ and $H_5{C}_6-CH=C{H}_2$
4. $H_{2}C=CN-CN$ and $H_{2}C=CH-\underset{\underset{Cl}{|}}{C}=C{H}_2$

Q. Initiatiors that are used in cationic polymerization is/are Options: Should have chosen KNO2 Wrong 3º–butylperoxide H2SO4 BF3 with little amount of H2O

Q.

Orlon has a unit

1. Iso prene
2. Glycol
3. Vinyl cyanide
4. Acrolein

Q.

Orlon has a unit

1. Isoprene
2. Acrolein
3. Glycol
4. Vinyl cyanide

Q. Why cine product is major product in case of Benzyne mechanism?

Q.

Which of the following is not a correct match?

Polymer Monomer/s

1. Teflon : Tetrafluoro ethylene

2. Plexi glass : Methacrylate

3. Orlon : Glycerol, phthalic anhydride

4. Buna - S : Styrene, 1, 3 butadiene

Q. Which of the following are homopolymers?

1. Polyvinyl chloride
2. Polyacrylonitrile
3. Buna rubber
4. Nylon-6, 6

Q. explain the following with example: istones, isoelectronic, isoester.

Q. Super glue or crazy glue is:

1. polymethyl methacrylate
2. polyethyl acrylate
3. polyethyl methacrylate
4. polymethyl $\alpha$-cyanoacrylate

Q.

Which of the following is not a correct match?

Polymer Monomer/s

1. Teflon : Tetrafluoro ethylene

2. Orlon : Glycerol, phthalic anhydride

3. Plexi glass : Methacrylate

4. Buna - S : Styrene, 1, 3 butadiene

Q. what is free radical poly merisation