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Match the catalysts (Column I) with products (Column II).

             ColumnI                                          Column II

            Catalyst                                               Product

      (A)   V_{2}O_{5}                                          (i) Polyethylene     

      (B)  TiCl_{4}/Al(Me)_{3}                      (ii) ethanal

      (C)   PdCl_{2}                                       (iii)   H_{2}SO_{4}

      (D) Iron\; Oxide                               (iv)   NH_{3}

 

 

  • Option 1)

     (A)-(iii); (B)-(iv);(C)-(i);(D)-(ii)

  • Option 2)

      (A)-(ii);(B)-(iii);(C)-(i);(D)-(iv)

  • Option 3)

     (A)-(iii);(B)-(i);(C)-(ii);(D)-(iv)

  • Option 4)

     (A)-(iv);(B)-(iii);(C)-(ii);(D)-(i)

 
      Contact Process - In this process SO2 obtained by burning of S or iron pyrites which is catalytically oxidised to  in presence of timely divided Pt or  as catalyst -       High density Polythene (HDP) - -  Polymerization of ethene in a hydrocarbon solvent under low pressure in presence of triethylaluminium and titanium tetrachloride (Ziegier. natta catalyst) -  Chain growth,...

Which of the following is a thermosetting polymer? 

 

 

  • Option 1)

    PVC

  • Option 2)

    Nylon 6 

  • Option 3)

    Buna-N

  • Option 4)

     Bakelite

  Thermosetting Polymers - They are highly cross - linked, hard, infusible and insoluble polymers.They cannot be reused. - wherein Eg:-  Bakellite, Urea,  Formaldehyde, Resin, etc       Bakelite is an example of the thermosetting polymer.  Bakelite is another name of Phenal formaldehyde. It is a thermosetting  polymer because it has cross linked structure. It can't be revised once it is...

The correct of the following polymer is :

 

  • Option 1)

    Polyisobutane 

  • Option 2)

    Polytert - butylene

  • Option 3)

    Polysioprene

  • Option 4)

    Polyisobutylene

  Addition Polymers - Formed by repeated addition of monomers having double or triple bonds. - wherein Eg:- Polythene (from ethene), Polypropylene (from propane)       Free radical mechanism of Chain growth Polymerisation - 1.  Chain initiation step   - Production of free radical   - Addition of this radical to a monomer to produce chain initiating species 2. Chain propagating step   -...

Which of the following compound is a constituent of the polymer

  • Option 1)

    N-Methyl\ \:urea

  • Option 2)

    Formaldehyde

  • Option 3)

    Methylamine

  • Option 4)

    Ammonia

  This is a urea formaldehyde polymer and its monomers are urea and formaldehyde.Option 1)Option 2)Option 3)Option 4)

Which of the following is a condensation polymer ?

  • Option 1)

     Buna - S

  • Option 2)

    Neoprene

  • Option 3)

    Teflon

  • Option 4)

    Nylon 6,6

Nylon 6,6 is a condensation polymer of hexamethylene diamine and adibic acid.  Buna - S, Teflon & Neoprene are condition polymer.   option (4) is correct.Option 1) Buna - SOption 2)NeopreneOption 3)TeflonOption 4)Nylon 6,6

The correct match between Item -I and Item -II is :

  Item - I   Item-II
(a) Highest density (I) Peroxide catalyst
(b) Polyacrylonitrile (II) Condensation at high temperature & pressure
(c) Novolac (III) Ziegler-Natta Catalyst
(d) Nylon 6 (IV) Acid or base catalyst

 

 

 

 

 

  • Option 1)

     (a)\rightarrow (IV),(b)\rightarrow (II),(c)\rightarrow (I),(d)\rightarrow (III)

  • Option 2)

    (a)\rightarrow (II),(b)\rightarrow (IV),(c)\rightarrow (I),(d)\rightarrow (III)

  • Option 3)

    (a)\rightarrow (III),(b)\rightarrow (I),(c)\rightarrow (II),(d)\rightarrow (IV)

  • Option 4)

      (a)\rightarrow (III),(b)\rightarrow (I),(c)\rightarrow (IV),(d)\rightarrow (II)

(a) High-density polyethene  (III)Ziegler-Natta catalyst          (H.D.P) H.D.P is obtained by using Zigler-Natta Catalyst (b) Polyacrylonitrile  (I)Peroxide catalyst   Polyacrylonitrile is obtained by using the peroxide catalyst  (c) Novolac (IV) Acid or base catalyst     It is obtained by acid /base   Catalyst polymerisation of formaldehyde & phenol. (d) Nylon 6  Condensation at a high temp....

The structure of Nylon-6 is:

 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

Structure of Nylon-6:- It is factiual based Given In NCERTOption 1)Option 2)Option 3)Option 4)

The homopolymer formed from 4 - hydroxy - butanoic acid is :

 

  • Option 1)

     

     

  • Option 2)

     

  • Option 3)

     

     

  • Option 4)

     

     

  Homopolymers - Polymer formed by single monomeric species. - wherein Polythene PHB is biodegradable polymer.    Option 1)    Option 2)  Option 3)    Option 4)    

The two monomers for the synthesis of Nylon 6, 6 are :

  • Option 1)

    HOOC(CH_{2})_{6}COOH

      H_{2}N(CH_{2})_{6}NH_{2}                                                        

  • Option 2)

    HOOC(CH_{2})_{4}COOH    

    H_{2}N(CH_{2})_{4}NH_{2}  

  • Option 3)

    HOOC(CH_{2})_{4}COOH    

    H_{2}N(CH_{2})_{6}NH_{2}

  • Option 4)

    HOOC(CH_{2})_{6}COOH    

    H_{2}N(CH_{2})_{4}NH_{2}

  Nylon 6,6 - - Condensation polymerization of hexamethylenediamine with adipic acid under high pressure. - Copolymer, step growth - wherein - High tensile strength - Used in textile fabrics, bristles for brushes.   As we have learned in Polymer . We know Nylon-6,6 is polymer of Hexamethylene diamine and Adipic acid         Option 1)                                                         ...

 

The correct structure of product 'P' in the following reaction is :

 

  • Option 1)

     

  • Option 2)

     

  • Option 3)

     

     

  • Option 4)

     

  Chain growth Polymers - Formed by successive addition of unsaturated monomers to the growing chain having a reaction intermediate of either free radicals or ionic species (carbocations, carbonions).  - wherein Eg:-   Polythene, Teflon, Polyacrylonitrile.    As we know ASn-Scr is a dipeptide having the structure -   Branched Chain Polymers - -  Linear chain of monomers with some branching. - ...

The major product of the following reaction is: 

    \xrightarrow[\left ( ii \right )\left ( COOH \right )_{2}]{\left ( i \right )dil.Hcl/\Delta }

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

Option-3

 

Poly-\! \beta -hydroxybutyrate\! -co-\beta\! -hydroxyvalerate (PHBV)  is a copolymer of _____.

  • Option 1)

    3-hydroxybutanoic acid and 4-hydroxypentanoic acid

  • Option 2)

    3-hydroxybutanoic acid and 3-hydroxypentanoic acid

  • Option 3)

    2-hydroxybutanoic acid and 3-hydroxypentanoic acid

  • Option 4)

    3-hydroxybutanoic acid and 2-hydroxypentanoic acid

 

Poly B- hydroxybutyrate- Co-B- hydroxy valerate (PHBV) -

- Obtained by copolymerisation of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.

- Biodegradable 

- wherein

- Used in orthopaedic devices and control release of drugs

as we hane learned in polymers PHBV can be obtained by copolymerization of 3- hydrdroxybutanoic acid and 3- Hy droxypentnoic acid

fig

 


Option 1)

3-hydroxybutanoic acid and 4-hydroxypentanoic acid

Option 2)

3-hydroxybutanoic acid and 3-hydroxypentanoic acid

Option 3)

2-hydroxybutanoic acid and 3-hydroxypentanoic acid

Option 4)

3-hydroxybutanoic acid and 2-hydroxypentanoic acid

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X and Y are

  • Option 1)

    Natural Rubber, Gutta Percha

  • Option 2)

    Gutta percha, natural rubber 

  • Option 3)

    natural rubber, natural rubber 

  • Option 4)

    none of these

 
  As we learned Gutta Percha - Natural rubber in which arrangement of carbon chain is trans with respect to the double bond ( trans-stereoisomer ). - wherein - Non-elastic - Obtained from bark of various trees.     Option 1) Natural Rubber, Gutta Percha Option 2) Gutta percha, natural rubber  Option 3) natural rubber, natural rubber  Option 4) none of these
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The following structure belongs to which polymer 

  • Option 1)

    Polyhydroxy Butyrate

  • Option 2)

    Buna-N

  • Option 3)

    Nylon2-nylon-6

  • Option 4)

    Thiokal

 
As we have learned Nylon 2 - Nylon 6 - - It's an alternating copolymer of        and     - Biodegradable. -    Nylon2-nylon6 is an alternating polyamide copolymer of glycine and amino caprioc acid and is biodegradable Option 1) Polyhydroxy Butyrate Option 2) Buna-N Option 3) Nylon2-nylon-6 Option 4) Thiokal
Engineering
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Which ones of the following are true about PHBV?

a) Biodegradable 

b) Obtained by copolymerization of 3-hydroxypentanoic acid and 3-hydroxybutanoic acid

c) used in orthopaedic devices

  • Option 1)

    a,b

  • Option 2)

    b,c

  • Option 3)

    a,c

  • Option 4)

    a,b,c

 
As we have learned Poly B- hydroxybutyrate- Co-B- hydroxy valerate (PHBV) - - Obtained by copolymerisation of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid. - Biodegradable  - wherein - Used in orthopaedic devices and control release of drugs     Option 1) a,b Option 2) b,c Option 3) a,c Option 4) a,b,c
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Which ones of the following are true about Buna-S 

a) 2 moles of Butadiene + 1 mole of Styrene

b) polymerizing agent is pt

c) free radical co-polymerization 

d) used is manufacture of tyres, etc.

  • Option 1)

    a,b,d

  • Option 2)

    c,d

  • Option 3)

    b,d

  • Option 4)

    a,b,c

 
As we have learned Buna- S - - Obtained by copolymerisation of 1, 3- butadiene and styrene - wherein - Resistant to wear and tear. - Used in making tyres and mechanical rubber goods.    Its 3 moles of Butadiene + 1 moles of styrene and the polymerizing agent is Na. Option 1) a,b,d Option 2) c,d Option 3) b,d Option 4) a,b,c
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What is correct about neoprene?

a) Anionic addition polymerization

b)  Homopolymer 

c) Superior resistance of vegetable oils 

d) used in gloves, rubber bands

  • Option 1)

    b,c

  • Option 2)

    b,d

  • Option 3)

    a,d

  • Option 4)

    a,c

 
As we have learned Neoprene - - Formed by free radical polymerization of chloroprene ( 2-chloro-1, 3-butadiene ). - Homopolymer - wherein - Superior resistance to vegetable and mineral oils. - Used in manufacturing conveyor belts, gaskets, hoses.    It is used in manufacturing conveyer belts, gaskets and hoses Option 1) b,c Option 2) b,d Option 3) a,d Option 4) a,c
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Which element plays the role of a cross linking agent in vulcanized rubber?

  • Option 1)

    C

  • Option 2)

    H

  • Option 3)

    S

  • Option 4)

    O

 
As we have learned Vulcanization of Rubber - Treating natural rubber under heat and sulphur. Sulphur forms cross-links and thus rubber gets stiffened. - wherein       Option 1) C Option 2) H Option 3) S Option 4) O
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What is true about natural rubber?

a) linear polymer

b) polymer of 2 methyl-1,3-butadiene

c) held together by strong intermolecluar bonding 

d) coiled structure

  • Option 1)

    a,b,d

  • Option 2)

    b,d

  • Option 3)

    b,c,d

  • Option 4)

    b,c

 
As we have learned Natural Rubber/ cis-1 4-polyisoprene - - It's an addition polymer of isoprene (2-methyl-1, 3-butadiene). - Chains are held together by weak van der waal's interaction. - wherein - Sticky material.    It is held together by weak Van der Waal's  interactions  Option 1) a,b,d Option 2) b,d Option 3) b,c,d Option 4) b,c
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Which of the following is true about melamine, formaldehyde

a) Condensation polymer

b) Addition polymer 

c) copolymer

d) Homopolymers

e) cable insulation 

 

  • Option 1)

    a,d,e

  • Option 2)

    d,e

  • Option 3)

    a,c

  • Option 4)

    a,c,e

 
As we have learned Melanin formaldehyde resin - - Obtained by condensation polymerization of melanin and formaldehyde. - Step growth, copolymer - wherein - Hard - Used in non-breakable crockery    It is used in manufacturing of unbreakable crockery. Option 1) a,d,e Option 2) d,e Option 3) a,c Option 4) a,c,e
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