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How mirror can be identified by observing the values of the magnification?

How mirror can be identified by observing the values of the magnification? If an object is placed within the focal length of a mirror, the image of the object will get magnified in case of a concave mirror, and will get diminished in case of a convex mirror. The value of magnification will be greater than 1 in case of a concave mirror, and less than 1 in case of a convex mirror.

Mineral Resources: Fossils

 Chemistry

Chapter - 11: Mineral Resources: Fossils

👉 All Chapter Contents 👈 


11.1 Fossil Fuel


11.2 Hydrocarbons


11.3 Saturated Hydrocarbons: Alkanes


11.4 Unsaturated Hydrocarbons: Alkenes and Alkynes


11.5 Alcohols, Aldehydes and Fatty Acids


11.6 The Uses of Alcohol, Aldehydes and Organic Acids


11.7 Polymers

Polymerization Reaction: The reaction in which innumerable tiny molecules of any substances are attached with each other and form a large molecule is called a polymerization reaction.

Monomer:

Polymer molecule:

Dimer:

Trimer:

Types of Polymers

Polymers can be classified in many ways. However, according to their structure, polymers are of two kinds, such as-

i) Addition Polymer and ii) Condensation Polymer.

i) Addition Polymer

The polymer which is formed in a addition polymerization reaction is called an addition polymer.

Addition Polymerization Reaction

The polymerization reaction in which the monomer molecules are directly connected to one another and form a long-chained polymer is called an addition polymerization reaction.

Preparation of polythene

When ethene is heated in the presence of little amount of oxygen at 1000 atmosphere pressure and 200℃ temperature is applied then polythene is produced.



Question Bank

11.1 Fossil Fuel

  • What is fossil fuel?
  • How to form fossil fuel?
  • Write the percentage of components of natural gas?

11.2 Hydrocarbons

  • What is hydrocarbon?
  • How many types of hydrocarbon?

11.3 Saturated Hydrocarbons: Alkanes

  • What is alkane?

11.4 Unsaturated Hydrocarbons: Alkenes and Alkynes

  • What is alkene?

11.5 Alcohols, Aldehydes and Fatty Acids

  • What is alcohol?

11.6 The Uses of Alcohol, Aldehydes and Organic Acid

  • Write the uses of alcohol?

11.7 Polymers

  • What are polymers?


Secondary Chemistry


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