12th Class Fsc Part 2 Short Questions Online Preparation for Chemistry chapter 11(Alcohols Phenols and Ethers)

Online Short Questions For Chapter 11 "12th Class Chemistry Chapter 11 Short Questions Preparation "

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Chemistry - 12th Class Chemistry Chapter 11 Short Questions Preparation

Question # 1

What happened when hydrogen iodide is added to ethers?

  • Ans 1: With hydrogen iodine ethers gives alcohols which can react further to give alkyl iodides.
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Prepare Complete Set Wise Questions For Chapter 11 "12th Class Chemistry Chapter 11 Short Questions Preparation "

12th Class Chemistry Chapter 11 Short Questions Preparation - Set 1

Question # 1

What happened when hydrogen iodide is added to ethers?

  • Ans 1: With hydrogen iodine ethers gives alcohols which can react further to give alkyl iodides.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 2

Question # 1

Conc .HNO3reacts with phenol to give picric acid how?

  • Ans 1: Picric acid is synthesized by the nitration of phenol,.Phenol reacts with conc HNO3at different temperature.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 3

Question # 1

Define the preparation of methanol by reaction of Co and H2?

  • Ans 1: First of all mixture of carbon monoxide and hydrogen is purified,It is compressed under a pressure of 200 atmospheres and taken into a reaction chamber by means of coiled pipers. These vapors are passed through a condenser to get methanol Unreacted gasses are recycled though compressor to reaction chamber.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 4

Question # 1

Write the reaction of phenol with methanal.

  • Ans 1: Phenol reacts with formaldehyde in the presence of acid or alkali to give hydrooxyl benzyl alcohol which on further reaction with other phenol molecules yields a polymer called Bakelite.
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12th Class Chemistry Chapter 11 Preparation

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