MCQ in Pharmaceutical Organic Chemistry-I (carboxylic acid)

MCQ in Pharmaceutical organic chemistry-I (Corboxylic acid)

Quiz

  

 

1. To which of the following groups does soap belongs
   1.   Esters
   2.   Amines
   3.   Salts of organic higher fatty acids
   4.   Aldehyde
2. Aspirin is an acetylation product of-
   1.   o-hydroxybenzoic acid
   2.   o-dihydroxybenzene
   3.   m-hydroxybenzoic acid
   4.   p-dihydroxybenzene
3. Which one is used as a food preservative
   1.   Sodium acetate
   2.   Sodium propionate
   3.   Sodium benzoate
   4.   Sodium oxalate
4. What makes a lemon sour-
   1.   Tartaric acid
   2.   Oxalic acid
   3.   Citric acid
   4.   Hydrochloric acid
5. The reagent used for protection of amino group during the nitration of aniline is-
   1.   Acetic acid
   2.   Acetic anhydride
   3.   Acetyl chloride
   4.   Benzoyl chloride
6. A carboxylic acid is converted into its anhydride using
   1.   Thionyl chloride
   2.   Sulphur chloride
   3.   Sulphuric acid
   4.   Phosphorus pentoxide
7. If the enolate ion combines with carbonyl group of ester, we get
   1.   Aldol
   2.   alfa, beta -unsaturated ester
   3.   beta-keto aldehyde
   4.   Acid
8. Colouration of Br2/CCl4 will be discharged by
   1.   Cinnamic acid
   2.   Benzoic acid
   3.   Acetophenone
   4.   o-phthalic acid
9. Which of the following is an amphoteric acid
   1.   Glycine
   2.   Salicylic acid
   3.   Benzoic acid
   4.   Citric acid
10. Which is most reactive of the following-
    1.   Ethyl acetate
    2.   Acetamide
    3.   Acetic anhydride
    4.   Acetyl chloride
11. The most acidic of the following is-
    1.   Benzoic acid
    2.   Chloroacetic acid
    3.   Acetic acid
    4.   Propanoic acid
12. Carbolic acid is
    1.   Benzoic acid
    2.   Phenol
    3.   Benzene
    4.   Benzaldehyde
13. Vinegar obtained from sugarcane has
    1.   Formic acid
    2.   Benzoic acid
    3.   Acetic acid
    4.   Propanoic acid
14. Which of these do not contain corboxylic group
    1.   Aspirin
    2.   Picric acid
    3.   Benzoic acid
    4.   salicylic acid
15. Oleic, stearic and palmitic acids are
    1.   Nucleic acids
    2.   Amino acids
    3.   Fatty acids
    4.   None of these
16. Sodium or potassium salts of higher fatty acids are called
    1.   Soaps
    2.   Terpenes
    3.   Sugars
    4.   Alkaloids
17. The ester among the following is
    1.   Calcium lactate
    2.   Ammonium acetate
    3.   Sodium acetate
    4.   None of these
18. Urea
    1.   Is an amide of carbonic acid
    2.   It is diamide of carbonic acid
    3.   Gives carbonic acid on hydrolysis
    4.   Resembles carbonic acid
19. Fats and oils are
    1.   Acids
    2.   Alcohols
    3.   Esters
    4.   Hydrocarbons
20. Urea is
    1.   Monoacidic base
    2.   Diacidic base
    3.   Neutral
    4.   Amphoteric
21. Number of oxygen atoms in a acetamide molecule is
    1.   1
    2.   2
    3.   3
    4.   4
22. Glycine may be classed as all of the following, except
    1.   A base
    2.   An acid
    3.   A zwitter ion
    4.   Optically active acid
23. Wax are long chain compounds belonging to the class
    1.   Acids
    2.   Alcohols
    3.   Esters
    4.   Ethers
24. Acetoacetic ester behaves as
    1.   An unsaturated hydroxy compound
    2.   A keto compound
    3.   Both of these ways
    4.   None of these
25. Which compound is known as oil of winter green
    1.   Phenyl benzoate
    2.   Phenyl salicylate
    3.   Phenyl acetate
    4.   Methyl salicylate
26. Which one is not a glyceride
    1.   Fat
    2.   Oil
    3.   Phospholipid
    4.   Soaps
27. Identify the wrong statement from the following
    1.   Salicylic acid’s a monobasic acid
    2.   Methyl salicylate is an ester
    3.   Methyl salicylate does not occur in natural oils
    4.   Salicylic acid gives violet colour with neutral ferric chloride as well as brisk effervescence with sodium bicarbonate
28. Which of the following is optically active
    1.   Ethylene glycol
    2.   Oxalic acid
    3.   Glycerol
    4.   Tartaric acid
29. Fats and oils are mixture of
    1.   Glycerides and saturated fatty acids
    2.   Glycerides and unsaturated fatty acids
    3.   Glycerides of saturated and unsaturated fatty acids
    4.   Only saturated and unsaturated fatty acids
30. (RCO)2NH- is
    1.   Primary amine
    2.   Secondary amine
    3.   Secondary amide
    4.   Tertiary amide