Fsc part 2 online preparation for chemistry chapter 7 (Fundamental Principles of Organic Chemistry)

Online Short Questions For Chapter 7 "12th Class Chemistry Chapter 7 Short Questions Preparation "

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Chemistry - 12th Class Chemistry Chapter 7 Short Questions Preparation

Question # 1

Differentiate between alicyclic and aromatic compounds?

  • Ans 1: Alicyclic Compounds:Thehomocyclic compounds which contain a ring of three or more carbons atom and resembling aliphatic compounds are alicyclic compounds ,The saturated alicyclic hydrocarbons have the general formula C2H2n.
  • Ans 2: Aromatioccompounds:The carboccyclic compounds containg at least one benezene ring six carbons atom with three alternate double and single bonds are called aromatic compounds,These are usually shown in the form of a circle.
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12th Class Chemistry Chapter 7 Short Questions Preparation - Set 1

Question # 1

Differentiate between alicyclic and aromatic compounds?

  • Ans 1: Alicyclic Compounds:Thehomocyclic compounds which contain a ring of three or more carbons atom and resembling aliphatic compounds are alicyclic compounds ,The saturated alicyclic hydrocarbons have the general formula C2H2n.
  • Ans 2: Aromatioccompounds:The carboccyclic compounds containg at least one benezene ring six carbons atom with three alternate double and single bonds are called aromatic compounds,These are usually shown in the form of a circle.
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12th Class Chemistry Chapter 7 Short Questions Preparation - Set 2

Question # 1

How is coal produced from the remains trees?

  • Ans 1: Coal in nature was formed from the remains of the trees buried inside the earth crust some 500 million years ago,Due to the bacterial and chemical pressure inside the earth crust,peat got transferred into crust this process is called carbonization of coal,Coal is important solid fuel and becomes a source of organic compound.
    Natural Gas: It is an important mean of energy especially for countries like Pakistan which are deficient in the production of mineral oil and coal.It is mixture of low boiling hydrocarbons.
    Petroleum:Mineral oil is called petroleum when it is in the refined from it is thought to have been formed by slow chemical and biochemical decomposition of the remains of the organic matter found between the sedimentary rocks.
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12th Class Chemistry Chapter 7 Short Questions Preparation - Set 3

Question # 1

What is metamerism?

  • Ans 1: Isomerism arises due to the unequal distribution of carbon atom on either side of the functional group ,Such compound belong to the same homologous series.
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12th Class Chemistry Chapter 7 Short Questions Preparation - Set 4

Question # 1

Define functional group isomerism .

  • Ans 1: An atom or group of atoms or a double bond or a triple bond whose presence imparts specific properties to organic compounds is called a functional group because they are chemically functional part of molecules.
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12th Class Chemistry Chapter 7 Preparation

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