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

How does phenol react with alkali?

  • Ans 1: Phenol has a acidic nature ,it reacts with alkalies to form salts.
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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

How does phenol react with alkali?

  • Ans 1: Phenol has a acidic nature ,it reacts with alkalies to form salts.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 2

Question # 1

Give any three uses of methyl alcohol?

  • Ans 1:
    1. It is used as solvent for fats oils,paints ,varnishes.
    2. It is also used as antifreeze in the radiator of automobile.
    3. It is used for denaturing of alcohol.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 3

Question # 1

Only 12-14% ethanol can be prepared by fermentation process .Justify?

  • Ans 1: Alcohol obtained by fermentation is only upto 12% an never exceeds 14% because beyond this limit enzymes become inactive,This alcohol is distilled again an again to obtain 95% alcohol which is called rectified spirit.
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12th Class Chemistry Chapter 11 Short Questions Preparation - Set 4

Question # 1

Write formula of carbolic acid and it one use.

  • Ans 1: Carbolic acid: C6H5OH
    its is poisonous and used as a disinfectant in hospitals and washrooms.
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12th Class Chemistry Chapter 11 Preparation

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