MULTIPLE-CHOICE QUESTIONS

1. Which of the following is not a functional group containing oxygen ?
   
   
   
   1. Alcohol
   2. Aldehyde
   3. Ketone
   4. Halide
   
   


2. The formula of methanal is ______.
   
   
   
   1. HCHO
   2. CH₃CH₂OH
   3. CH₃COCH₃
   4. CH₃COOCH₃
   
   


3. Which of the following is propanone ?
   
   
   
   1. CH₃OH
   2. CH₃CH₂COOH
   3. CH₃COCH₃
   4. CH₃COOCH₃
   
   


4. The formula of the functional group ester is ______.
   
   
   
   1. -CHO
   2. -COOH
   3. -COOR
   4. -CONH₂
   
   


5. Which of the following represents alcohol group ?
   
   
   
   1. -OH
   2. -COOH
   3. -CHO
   4. -CONH₂
   
   


6. The formula of butanol is ______.
   
   
   
   1. CH₃OH
   2. C₂H₅OH
   3. C₃H₇OH
   4. C₄H₉OH
   
   


7. Fermentation process to manufacture ethyl alcohol is ______.
   
   
   
   1. an aerobic process
   2. an anaerobic process
   3. a polymerisation process
   4. a catalytic aerobic process
   
   


8. Which enzyme converts sugar (sucrose) or molasses into glucose or fructose ?
   
   
   
   1. Invertase
   2. Zymase
   3. Ethanol
   4. Ptylin
   
   


9. Which enzyme converts glucose ( or fructose) onto alcohol ?
   
   
   
   1. Ptylin
   2. Invertase
   3. Zymase
   4. Lactose
   
   


10. Yeast contains ______.
    
    
    
    1. invertase only
    2. zymase only
    3. both invertase and zymase
    4. neither invertase nor zymase
    
    


11. Pure ethanol is ______.
    
    
    
    1. acidic
    2. basic
    3. neutral
    4. acidic base
    
    


12. Oxidation of ethanol in presence of alkaline potassium permanganate gives
    
    
    
    1. acetaldehyde
    2. ethene
    3. potassium ethoxide
    4. acetic acid
    
    


13. The chemical name of acetic acid is ______.
    
    
    
    1. methanoic acid
    2. ethanoic acid
    3. propanoic acid
    4. vinegar
    
    


14. Ethylethanoate is ______.
    
    
    
    1. an alcohol
    2. an acid
    3. an ester
    4. a ketone
    
    


15. ______ have fruity smell.
    
    
    
    1. Alcohols
    2. Organic acids
    3. Esters
    4. Ketones
    
    


16. In aldehydes, the carbonyl group is attached to
    
    
    
    1. one hydrogen and one oxygen
    2. one hydrogen and one alkyl group
    3. two alkyl groups
    4. one oxygen and one alkyl group
    
    


17. The boiling point of formaldehyde is ______°C.
    
    
    
    1. 10
    2. 20
    3. 40
    4. 80
    
    


18. Which catalyst is used for the reduction of methanal to methanol.
    
    
    
    1. Pd
    2. Pt
    3. V₂O₅
    4. K₂Cr₂O₇
    
    


19. What is the boiling point of acetone ?
    
    
    
    1. 40°C
    2. 48°C
    3. 56°C
    4. 64°C
    
    


20. Which of the following is immiscible with water ?
    
    
    
    1. Ethanol
    2. Formaldehyde
    3. Acetone
    4. Hexane
    
    


21. Oxidation of propanone in presence of alkaline KMnO₄ gives ______.
    
    
    
    1. ethanal
    2. ethanol
    3. ethanoic acid
    4. ethylethanoate
    
    


22. Which of the following is an IUPAC name ?
    
    
    
    1. Propanoic acid
    2. Ethyl alcohol
    3. Formic acid
    4. Acetaldehyde
    
    


23. What is vinegar ?
    
    
    
    1. Methanol
    2. Ethanol
    3. Formic acid
    4. Acetic acid
    
    


24. The boiling point of acetic acid is ______ °C.
    
    
    
    1. 98
    2. 108
    3. 118
    4. 128
    
    


25. An organic acid + an alcohol → ______ + water.
    
    
    
    1. An aldehyde
    2. A ketone
    3. An ester
    4. A carboxylic acid
    
    


26. What is used as a food preservative ?
    
    
    
    1. Ethanol
    2. Propanone
    3. Formic acid
    4. Acetic acid
    
    


27. Which of the following is not a thermoplastic ?
    
    
    
    1. Polythene
    2. PVC
    3. Polystyrene
    4. Bakelite
    
    


28. Which of the following is artificial rubber ?
    
    
    
    1. Neoprene
    2. Isoprene
    3. Chloroprene
    4. TEFLON
    
    


29. The monomers of condensation polymer contain minimum ______ functional group/groups.
    
    
    
    1. 1
    2. 2
    3. 3
    4. 4
    
    


30. The name of thje functional group -OH is ______.
    
    
    
    1. aldehyde
    2. ketone
    3. alcohol
    4. glucose
    
    


31. Which of the following is the functional group present in ketone compounds ?
    
    
    
    1. -CHO
    2. -OH
    3. C=C
    4. >C=O
    
    


32. Which compound has "-anal" in the end of its name ?
    
    
    
    1. -CHO
    2. -OH
    3. >C=O
    4. C-C
    
    


33. Which compound is an insecticide ?
    
    
    
    1. Acetone
    2. Acetic acid
    3. Acetaldehyde
    4. Glucose
    
    


34. The enzyme which converts milk into curd is ______.
    
    
    
    1. Lactase
    2. Invertase
    3. Zymase
    4. Cellulase
    
    


35. Which of the following is not an oxidising agent ?
    
    
    
    1. NaBH₄
    2. KMnO₄
    3. Cr₂O₃
    4. Fehling's solution
    
    


36. The reaction between carboxylic acid and ethanol in presence of H₂SO₄ is known as ______.
    
    
    
    1. saponification
    2. hydrolysis
    3. esterification
    4. decarboxylation
    
    


37. Which functional group does not give a compound having two carbon atoms ?
    
    
    
    1. Carboxylic acid
    2. Aldehyde
    3. Ketone
    4. Alcohol
    
    


38. Which of the following is a condensation polymer ?
    
    
    
    1. Nylon
    2. PVC
    3. Natural rubber
    4. Teflon
    
    


39. The respsctive aldehyde obtained from methane is ______.
    
    
    
    1. methanol
    2. formic acid
    3. formaldehyde