Tag: polymers

Quizzes (12) Questions (105)

Questions Related to polymers

Multiple choice classification of polymers introduction to polymers and its classification polymer polymers chemistry

'Koroseal' is a long, chain polymer. When mixed with plasticizers, it forms an excellent plastic. Which one of the following is not the use of it?

  1. For water-proofing

  2. Lining material for tanks

  3. In wire and cable insulation

  4. For sun-shading
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Koreseal is a long chain polymer of vinyl chloride $(CH _2CHCl)$.

Vinyl polymers are heat, electricity and corrosion resistant and are unaffected by exposure to light or by long storage.
When it is mixed with plasticizers, it is used as wall covering paints for water proofing property; lining material for tanks; also used in wire and cable insulation.

Multiple choice classification of polymers introduction to polymers and its classification polymer polymers chemistry

Arrange the following types of polymer in order of decreasing force of attraction.


   Fibres        Elastomer                Thermoplastic
      (I)                 (II)                               (III)

  1. I > II > III

  2. I > III > II

  3. II > I > III

  4. III > II > I
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fiber have strong intermolecular forces of attraction take H-bonding.


Elastomers have weak fores of attraction which thermoplastic have weakest 
forces like london or dispersion forces / vanderwaal forces.

So order is $(I)>(III)>(II)$