Polyester

Q.

What is the full form of PET in science?

Q.

Of the following which one is classified as polyester polymer ?

1. Bakelite

2. Melamine

3. Terylene

4. Nylon - 6, 6

Q.

Which polymer is used in the manufacture of paints and lacquers?

Q. What is the most common type of polyester?

1. Polyethylene
2. Polyethylene terephthalate
3. Polyglycolate
4. Polyvinyl chloride

Q. 33. The reaction of alkyl halide with RCOOAg produces ?? 1. Ester 2. Ether 3. Aldehyde 4. Ketone

Q. Match List-I with List-II.
$\begin{array}{cc}\text{List I}& \text{List II}\\ \text{Polymers}& \text{Commercial names}\\ \text{A. Phenol-}& \text{I. Glyptal}\\ \text{formaldehyde resin}& \\ \text{B. Copolymer of}& \text{II.Novolac}\\ \text{1, 3-butadiene and}& \\ \text{styrene}& \\ \text{C. Polyester of glycol}& \text{III. Buna-S}\\ \text{and phthalic acid}& \\ \text{D. Polyester of glycol}& \text{IV. Dacron}\\ \text{and terephthalic acid}& \end{array}$
Choose the correct answer from the option give below:

1. A-II, B-III, C-I, D-IV
2. A-II, B-I, C-III, D-IV
3. A-III, B-II, C-IV, D-I
4. A-II, B-III, C-IV, D-I

Q. Write the names of the monomers used for getting the following polymers.
(i) Nylon $6,6$
(ii) Glyptal
(iii) Bakelite
(iv) Terylene

Q. Aldehydes and ketones can be reduced to corresponding hydrocarbons by

1. Reflux with water
2. Reflux with strong acids
3. Refluxing with soda amalgam and water
4. Refluxing with zinc amalgam and concentrated HCl

Q.

Nylon is a:

1. Polyamide

2. Polyester

3. Vinyl polymer

4. Polysaccharide

Q.

Match the polymers given in Column I with their commercial names given in Column II.

$\begin{array}{cccc}& ColumnI& & ColumnII\\ A.& Polyesterofglycolandphthalicacid& 1.& Novolac\\ B.& Copolymerof1,3-butadieneandstyrene& 2.& Glyptal\\ C.& Phenolandformaldehyderesin& 3.& Buna-S\\ D.& Polyesterofglycolandterephthalicacid& 4.& Buna-N\\ E.& Copolymerof1,3-butadieneandacrylonitrile& 5.& Dacron\end{array}$

Q. When methl D-glucopyranoside is treated with $HI{O}_4$ how many moles of $HI{O}_4$ are consumed with per mole of the sugar?

1. 2
2. 3
3. 4
4. 5

Q.

1. Thermo setting polymer
2. Homo polymer
3. copolymer
4. addition polymer

Q. What is PET made out of?

1. Ethylene
2. Ethylene glycol
3. Terephthalic acid
4. Ethylene diamine

Q. Terylene is the polyester of:

1. hexamethylene diamine and adipic acid
2. vinyl chloride and formaldehyde
3. melamine and formaldehyde
4. ethylene glycol and terephthalic acid

Q. The compound formed by reaction of ethylene glycol and periodic acid $\left(HI{O}_4\right)$ is:

1. glyoxal
2. formaldehyde
3. carbon dioxide
4. formic acid

Q. Arrange the following compounds in increasing order of their acid strength.
Propan-1-ol, 2, 4, 6-trinitrophenol, 3-nitrophenol, 3, 5-dinitrophenol, phenol, 4- methyl phenol .

Q. Convert: (i) 3-phenyl-1-propanol to 3-phenyl-1-propanal.
(ii) isopropyl alcohol to acetone.

Q. The major product obtained on acid - catalysed hydration of 2-phenylpropene is:

1. 2-phenylpropan-2-ol
2. 2-phenylpropan-1-01
3. 3-phenylpropan-2-ol
4. 1-phenylpropan-1-ol

Q. Dacron is an excellent cloth which is resistant to wrinkled and moth. It is a synthetic polyester fibre made from:

1. vinyl pyridine
2. caprolactum and alcohol
3. terephthalic acid and ethylene glycol
4. phthalic acid and cellulose

Q. An organic lactum A on acid hydrolysis produces B, an amino acid, .B on treatment with nitrous acid gives C. C on heating with concentrated $H_{2}S{O}_4$ produces a lactone D. A can be synthesized by the reaction of cyclopentanone with hydroxylamine followed by treatment of product with concentrated $H_{2}S{O}_4$. Deduce structures of A to D.

Q. Which of the following reagents may be used to distinguish between phenol and benzoic acid?

1. Aqueous $NaOH$
2. Molisch reagent
3. Tollen's reagent
4. Neutral $FeC{l}_3$

Q. Give any two tests to identify carboxylic acids.

Q. Which one is not the chain-growth polymer ?

1. Natural rubber
2. Polythene
3. Polypropylene
4. Terylene

Q.

PVC is a type of:

1. Addition polymer

2. Natural rubber

3. Synthetic polymer

4. Homopolymers

Q. An example of micelle is:

1. ${As}_2{O}_3$ sol
2. Ruby glass
3. ${Na}_{2}S{O}_3$ solution
4. Sodium stearate concentrated solution

Q. Which of the following is not a hydride of nitrogen?

1. Hydroxyl amine
2. Hydrazoic acid
3. Ammonia
4. Hydrazine

Q. Which one is classified as a condensation polymer?

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

Q. Which of the following is an example of polyester?

1. Bakelite
2. Nylon 6
3. Dacron
4. Buna-S

Q. Simplest carboxylic acid among the following is:

1. acetic acid
2. formic acid
3. butanoic acid
4. propanoic acid

Q. Which one is classified as a condensation polymer?

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