Write the monomers used for getting the | Class 12 Chemistry Chapter Polymers, Polymers NCERT Solutions

Question:

Write the monomers used for getting the following polymers. (i) Polyvinyl chloride (ii) Teflon (iii) Bakelite

Answer:

1) Polyvinyl chloride (PVC) - The monomeric unit present is vinyl chloride (CH2 =CH –Cl). PVC is used in the manufacture of rain coats, curtain cloths, hand bags, toys, artificial flooring, gramophone records and as a good insulating material in wires and other electrical goods.

2) Teflon (PTFE) - The monomeric unit present is tetrafluoroethene (n F2C = CF2). Teflon is used as a material resistant to heat and chemical attack. It is also used for making gaskets, pump packings, valves, oil seals, non -lubricated bearings.

3) Bakelite - The monomeric unit present is formaldehyde (HCHO) and phenol (C6H5OH). Bakelite is used for making glue for binding laminated wooden planks and in varnishes, combs, fountain pens, electrical switches.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Polymers.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

  • Nandini
  • 2019-12-18 06:11:56

Thanks


  • Egjm
  • 2019-05-12 09:07:10

Hai


  • Sandeep Mauryavanshi
  • 2019-05-05 21:10:01

Thanks sir


  • Harsha Royal
  • 2019-03-12 23:28:33

ThXxxx sir/madam


  • Hashim
  • 2019-02-15 08:13:23

Thanks sir


  • Prerna
  • 2019-02-12 12:56:12

Thanku


  • Prerna
  • 2019-02-12 12:55:52

Thanku


  • RISHAV RAJ
  • 2019-01-13 09:42:45

Sir glyptal ka nai bataye


  • Amit Kumar
  • 2018-11-03 08:46:21

Thanks sir


  • sajan kumar
  • 2018-09-08 17:10:39

thanks sir


Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 12: Write the monomers used for getting the following polymers. (i) Polyvinyl chloride (ii) Teflon (iii)....