Frank Solutions for Chapter 11E Alcohols Class 10 Chemistry ICSE

1. Write the molecular formula and structural formula of ethanol. 
Molecular formula of Ethanol : C2H5OH 
Structural formula of Ethanol  : 

2. Give the necessary conditions and equations of getting ethanol from:
(a) Alkyl halide
(b) An ethene
Necessary conditions and equations of getting ethanol from the following are : 
(a) Alkyl halide : alkyl halide on hydrolysis with dilute alkali give alcohol 

3. Name the following :
(i) Oxidising agent used to convert ethanol to acetic acid
(ii) Catalyst used in the Esterification reaction
(iii) A toxic alcohol
(iv) 100% ethanol
(i) Potassium dichromate and potassium permanganate in the presence of acid. 
(ii) Conc. H2SO4 
(iii) Methanol 
(iv) Ethyl alcohol 

4. How does ethanol reacts with
(a) Metallic sodium
(b) Acetic acid
(c) Conc. H2SO4

5. Write the composition of the following :
(i) Methylated spirit 
(ii) Power  alcohol 
(iii) Spurious alcohol 
(i) Methylated spirit : Ethyl alcohol mixed with certain percentage of methyl alcohol. 
(ii) Power  alcohol : Petrol : Alcohol in 4 : 1 
(iii) Spurious alcohol : Ethyl alcohol mixed with higher percentage of methyl alcohol 

6. Give three uses of ethanol. 
Uses of ethanol : 
  1. In the manufacture of alcoholic beverages 
  2. As a solvent for paint, oils, perfumes 
  3. As an antifreeze in automobile radiators 

7. How will you carry out the following conversions : 
(i) Ethanol to ethene 
(ii) Bromoethane to ethanol 

8. A neutral compound 'X' of molecular formula C2H6O on oxidation with acidified potassium dichromate gives a compound 'Y' . Compound 'X' react with 'Y' on warming in presence of conc. H2SO4 to give a sweet smelling substance 'Z'. What are 'X' , 'Y' , and 'Z' ? Give equations of the reaction  involved. 
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