1st Year Chemistry Chapter 18 Test18. Alcohol

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Basic hydrolysis of an ester produces:
   1. Carboxylic acid and alcohol
   2. Acid and ketone
   3. Aldehyde and water
   4. Carboxylate salt and alcohol
2. Which reagent is used to convert alcohol into bromoalkane?
   1. KBr + H₂SO₄
   2. KMnO₄
   3. SOCl₂
   4. NaBr
3. In the oxidation of alcohols, the color of dichromate changes from:
   1. Blue to green
   2. Orange to green
   3. Green to brown
   4. Yellow to orange
4. Formation of esters from alcohols and acids is called:
   1. Reduction
   2. Esterification
   3. Dehydration
   4. Polymerization
5. When alcohol reacts with sodium metal, the gas evolved is:
   1. CO₂
   2. Cl₂
   3. O₂
   4. H₂
6. Secondary alcohols are oxidized to form:
   1. Ketones
   2. Acids
   3. Aldehydes
   4. Esters
7. Primary alcohols on oxidation give:
   1. Ketones
   2. Aldehydes
   3. Esters
   4. Ethers
8. Reaction of a haloalkane with aqueous NaOH gives:
   1. Aldehyde
   2. Alcohol
   3. Ether
   4. Ketone
9. Methanal when reduced gives:
   1. Ethanol
   2. Methanol
   3. Ethanal
   4. Propanol
10. Ethanol can be converted into ethanoic acid by :
    1. Hydrogenation
    2. Hydration
    3. Oxidation
    4. Fermentation