12th Class Fsc Chemistry Online Preparation for chapter 14 (Macromolecules)

Online Short Questions For Chapter 14 "12th Class Chemistry Chapter 14 Short Questions Preparation "

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Chemistry - 12th Class Chemistry Chapter 14 Short Questions Preparation

Question # 1

Write use of polystyrene.

  • Ans 1: It is used in the manufacturing of goof container ,cosmetics bottles ,toys and packing material etc.
  • Ans 2:

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Prepare Complete Set Wise Questions For Chapter 14 "12th Class Chemistry Chapter 14 Short Questions Preparation "

12th Class Chemistry Chapter 14 Short Questions Preparation - Set 1

Question # 1

Write use of polystyrene.

  • Ans 1: It is used in the manufacturing of goof container ,cosmetics bottles ,toys and packing material etc.
  • Ans 2:

Submit

12th Class Chemistry Chapter 14 Short Questions Preparation - Set 2

Question # 1

What are polymers?Give two example.

  • Ans 1: Polymers are describe as large molecule built up from small repeating units.called monomers,The word polymers is derived from greek,poly mean many and mer mean parts.
    For example: Cotton,wood,plastics.
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12th Class Chemistry Chapter 14 Short Questions Preparation - Set 3

Question # 1

What are thermoplastics and thermosetting polymers?

  • Ans 1: Thermoplastics polymer: A thermoplastic polymer is one which can softened repeatedly when heated and hardened when cooled with a little change in properties. For example PVC pipes,plastics toys etc.
    Thermosetting polymers:The polymer which becomes hard on heating and can not be softened again are called thermosetting polymers,A thermosetting polymers on heating decompose instead of melting For example synthetic ,varnish ,epoxy resins etc.
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12th Class Chemistry Chapter 14 Short Questions Preparation - Set 4

Question # 1

Give the classification of carbohydrates along with an example?

  • Ans 1: 1.Monosaccharides:
    For example : glucose ,fructose ,glactose
    2.Disaccharides or Oligosaccharises:
    For example: Sucrose,lactose ,maltose
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Chemistry
14th Chapter

12th Class Chemistry Chapter 14 Preparation

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