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Homopolymer

Homopolymer

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Q.

Distinguish between the terms homopolymer and copolymer and given an example of each.

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Q.

Is $(- N H - C H R - C O)_{n}$ , a homopolymer or copolymer ?

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Q. What is a homopolymer?

A polymer with uniform density throughout.
A polymer with extra monomer unit other than the base unit.
A polymer made out of one kind of monomer units.
A polymer which is isotropic, i.e has same properties in all directions.

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Q. Identify the type of polymer.
(i) -A -A -A -A -A -A-
(ii) -A -B -B -A -A -A -B -A-

(i) Homopolymer, (ii) Copolymer
(i) Natural polymer, (ii) Synthetic polymer
(i) Linear polymer, (ii) Branched polymer
(i) Fibre, (ii) Elastomer

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Q. What is a homopolymer? Give an example.

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Q. Which of the following is a condensation polymer?

Nylon-6, 6
Teflon
Neoprene
Buna-S

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Q. Which of the following is not a homopolymer?

Butyl rubber
Neoprene
Natural rubber
Nitrile rubber

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Q. Is

(- C H_{2} - C H_{2} -)_{n}

a homopolymer or a copolymer?

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Q.

Distinguish between the terms homopolymer and copolymer and give an example of each.

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Q.

C H \equiv C H C u_{2} C l_{2} / N H_{4} C l - -------- \to Δ A H C l - - \to B

When B is polymerized, what is not true about the polymer?

Polymer formed is 1, 4-addition polymer
Polymer formed is known as synthetic rubber
Polymer formed is poly-2-chlorobuta-1, 3-diene
Polymer formed is known as polyisoprene

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Q. Among the following, the branched chain polymer is:

PVC
polyester
low density polyethylene
nylon - $6, 6$

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Q.

Distinguish between the terms homopolymer and copolymer and give an example of each.

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Q. Which of the following is a condensation homopolymer?

Nylon - $6$
Nylon - $6, 6$
Nylon - $6, 10$
Dacron

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Q. Which of the following constitute a pair of homologous?

1-butanol, butanal
2-butanol, 2-propanol
sec-butyl alcohol, n-butyl alcohol
sec-butyl alcohol, t-butyl alcohol

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Q. Terylene is not a :

step growth polymer
polyester fibre
chain growth polymer
copolymer

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Q. A homopolymer is obtained by polymerisation of :

one type of monomer units
two types of monomer units
either of the above
all different monomers

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Q. Define the term 'homopolymerisation' giving an example.

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Q. The homologue of ethyne is :

$C_{2} H_{2}$
$C_{3} H_{8}$
$C_{2} H_{6}$
$C_{3} H_{4}$

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Q.

C H \equiv C H C u_{2} C l_{2} / N H_{4} C l - -------- \to Δ A H C l - - \to B

When B is polymerized, what is not true about the polymer?

Polymer formed is 1, 4-addition polymer
Polymer formed is known as polyisoprene
Polymer formed is known as synthetic rubber
Polymer formed is poly-2-chlorobuta-1, 3-diene

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Q.

C H_{3} - C H_{3} P y r o l y s i s - ----- \to A

A 1000 - 2000 a t m, t r a c e s o f O_{2}, Δ - ----------------- \to C_{6} H_{5} - C O - O - O - C O - C_{6} H_{5} B

A Z i e g l e r - N a t t a C a t a l y s t - ------------- \to 6 - 7 a t m, Δ C

Here, B and C are :

LDPE, HDPE
HDPE, LDPE
LDPE, LDPE
HDPE, HDPE

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Q.

{[\begin{matrix} - C H_{2} - C H ∣ O H - C H_{2} - C H ∣ O H - C H_{2} - C H ∣ O H - \end{matrix}]}_{n}

Polyvinyl alcohol (as shown above) is a unique polymer having high affinity for water. Which of the following procedures would be most suitable for its preparation?

radical chain polymerisation of $C H_{2} = C H - O H$
radical chain polymerisation of $C H_{2} = C H - C H_{2} - O H$
radical chain polymerisation of $C H_{2} = C H - O C O C H_{3}$ , followed by acid catalysed hydrolysis
radical chain polymerisation of $C H_{2} = C H - C O_{2} C H_{3}$ , following by base catalysed hydrolysis
radical chain polymerisation of $C H_{2} = C H - O C O C H_{3}$ , followed by base catalysed hydrolysis

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Q. Is

(N H - C H R - C O)_{n}

a homopolymer or copolymer?

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Q. Filling in the blanks
___________ is a monomer of polythene.

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Q.

Read the following statements and answer as true or false.

Ethanol is the first member of the alcohol homologous series.
If true enter 1, else enter 0

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Q. What is a homopolymer?

A polymer with uniform density throughout.
A polymer with extra monomer unit other than the base unit.
A polymer made out of 1 kind of monomer units.
A polymer which is isotropic, i.e has same properties in all directions.

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Q.

Teflon, polystyrene and neoprene are all ________.

Copolymers
Monomers
Homopolymers
Condensation polymers

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