CHAPTER 13
Chapter 13
CARBOXYLIC ACIDS 1. Which acid of the following is not a fatty acid? (a) Propanoic acid (b) Phthalic acid (c) Butanoic acid (d) Acetic acid
2. Which reagent is used to reduce a carboxylic group to an alcohol? (a) H2/Ni (b) H2/Pt (c) H2/Pd (d) LiAlH4
3. Sodium acetate and Acetyl chloride react to give: (a) Acetic acid (b) Acetone (c) Acetic anhydride (d) None
4. Acetic acid and formic acid, both exist as cyclic dimer in vapour state because of: (a) Hydrogen bonding (b) Polymerization (c) Condensation (d) Distillation
5. Nature of Glycine amino acid is: (a) Neutral (b) Acidic (c) Basic (d) None
6. Acetic acid is obtained when (a) CH3OH is oxidized (b) Calcium . om acetate is distilled (c) Ethanol is oxidized (d) Ammonium carbonate is heated
7. Which one of the following products is not formed when acetic acid reacts with PCl5? (a) CH3COCl (b) HCl (c) POCl3 (d) CH3Cl
8. Which of following derivative cannot be prepared directly from acetic acid? (a) Acetamide (b) Acetyl chloride (c) Acetic anhydride (d) Ethyl acetate
9. Acetamide is prepared by: (a) Heating ammonium acetate (b) Heating methyl cyanide (c) Hydrazine (d) Mixture of NH4Cl and acetic acid
10. Which Ester is used for the flavor of Banana: (a) Benzyl acetate (b) Amyl acetate (c) Isobutyl formate (d) Ethyl butyrate
11. Freezing point of acetic acid is: (a) -17oC (b) 17oC (c) -118oC (d) Room temperature
12. Glacial acetic acid is miscible in all proportions with: (a) Water (b) Ether (c) Alcohol (d) All of these
13. The carbon atom of a carbonyl group is: (a) Unhybridized (b) sp hybridized (c) sp2 hybridized (d) sp3 hybridized
14. The boiling points of the Carboxylic acid are: (a) High (b) Low (c) Extremely low (d) Extremely high
15. Carboxylic acids on reaction with Lithium hydride are reduced to: (a) Aldehyde (b) Alkene (c) Alcohol (d) Ester
16. Which of following is commonly known as vinegar: (a) Formic acid (b) Butanoic acid (c) Formaldehyde (d) Acetic acid
17. When Ethyl alcohol is oxidized with K2Cr2O7 and dilute H2SO4 , which of the following is produced: (a) Formaldehyde (b) Acetic acid (c) Butanoic acid (d) Formic acid
18. Zwitterion is also called: (a) Dipolar ion (b) Internal Salt (c) both a and b (d) Non polar ion
19. Amino acids can be synthesized by reaction of α-Bromo acid with: (a) Ammonia (b) Urea (c) Ammonium Chloride (d) Formaldehyde
20. Reaction of acids with alcohols is known as:
(a) Esterification (b) Saponification (c) Neutralization (d) None
21. Toluene can be oxidized to Benzoic acid by: (a) KMnO4 (acidic medium) (b) K2Cr2O7 (acidic medium) (c) Both a and b (d) None
22. When two moles of acetic acid are heated with P2O5 the product formed is: (a) 2 moles of ethyl alcohol (b) Two moles of Acetone (c) Acetic anhydride (d) Ethyl acetate ester
23. Of the following four reactions, formic acid and acetic acid differ in mwhich respect? (a) Replacement of hydrogen by sodium (b) Formation of ester with alcohol (c) Reduction of Fehling solution (d) Blue litmus reaction
24. Glacial Acetic acid at 17oC is:
(a) Colourless liquid (b) Ice like s.olidc (c) Waxy solid (d) A gas
25. Weakest acid among the followings is: (a) Acetic acid (b) Phyenol (c) Water (d) Acetylene
26. Ethyl alcohol reacts with acetyl chloride to form: (a) Ethyl chloride (b) Acetic acid (c) Methyleacetate (d) Ethyl acetate
27. Which of the following is the strongest acid: (a) CF3COOH (b) CBr3COOH (c) CH3COOH (d) CCl3COOH
28. HCOOH reacts with conc H2SmO4 to produce: (a) CO+H2O (b) CO2+H2 (c) HCHO (d) None
29. Hydrolysis of an ester gives a carboxylic acid which on Kolbe’s electrolysis yields ethane, the ester is (a) Ethyl methonoate (b) Methyl ethanoate (c) Ethyl acetate ester (d) None
30. Carboxylic acids are more acidic than phenol and alcohol because of: (a) Intermolecular hydrogen bonding (b) Formation of Dimers (c) Highly acidic hydrogen (d) Resonance stabilization of their conjugate base (Carboxylate ion)
31. Organic compounds having fruity smell are: (a) Carboxylic acids (b) Alcohols (c) Ethers (d) Esters
32. The solution of the acid used for seasoning of food is: (a) Formic acid (b) Acetic acid (c) Benzoic acid (d) Butanoic acid
33. Which of the following is not a fatty acid? (a) Propanoic acid (b) Acetic acid (c) Phthalic acid (d) Butanoic acid
34. Acetic acid was first isolated from: (a) Butter (b) vinegar
(c) Milk (d) Red ant
35. Acetic acid was first isolated from: (a) Butter (b) Vinegar
(c) Milk (d) Red ant
36. The molecular mass of protein is: (a) Less than 10,000 (b) Greater than 10,000 (c) Equal to 10,000 (d) Equal to 9,000
37. Amino acids are prepared by: (a) Williamson’s synthesis (b) Strecker’s synthesis (c) Wurtz’s synthesis (d) Perkin’s reaction
38. The molecular mass of protein is: (a) Less than 10,000 (b) Greater than 10,000 (c) Equal to 10,000 (d) Equal to 9000
39. Molar mass of CH3COOH obtained by elevation of boiling point method is: (a) 30 (b) 60 (c) 120 (d) 180
40. Which compound is polyprotic acid? (a) CH3COOH (b) C6H4(OH)COOH m (c) (COOH)2 (d) C6H5OH
41. Dipolar structure of zwitterions is also called:
(a) Double salt (b) Health salt
(c) Internal salt (d) External salt
42. The flavor of amyl acetate is: (a) Orange (b) Apricot (c) Pine apple (d) Banana
43. Acetic acid is manufactured by: (a) Distillation (b) Fermentation (c) Ozonolysis (d) Esterification
44. The organic acid that does not have carboxyl group is: (a) Formic acid (b) Picric acid (c) Formaldehyde (d) Acetone
45. Tyrosine was first isolated from. (a) Sugar (b) Cheese (c) Butter (d) Milk
46. Phathalic acid is a: (a) Monocarboxylic acid (b)Dicarboxylic acid (c) Tricarboxylic acid (d) None of these
47. The reagent used to convert carboxylic acid directly to alkane is (a) HI/P (b) NaBH4 (c) LiAlH4 (d) H2/Ni
48. Which acid is used in the manufacture of synthetic fiber? (MTN 2015) (a) Formic acid (b) Oxalic acid (c) Carbonic acid (d) Acetic acid
49. The amino acids which cannot be synthesized by our body are: (a) 5 (b) 10 (c) 15 (d) 20
50. Which one of the following is an unsaturated carboxylic acid? (a) Malonic acid (b) Oxalic acid (c) Succinic acid (d) Maleic acid