Practice MCQ For Govt Pharmacist Exam, in this article we will solve, Practice MCQ on the topic, carboxylic acids- structure and uses under the subject Pharmaceutical organic chemistry of second semester. Read following article for your reference.
Carbonyl Compounds- Structure And Uses » PHARMACAREERS
What is the condensed formula for acetic acid?
a) CH4COOH
b) CH2COOH
c) CH103COOH
d) CH3COOH
Which of the following represents the alcohol required for the synthesis of Clofibrate (used to lower blood triglycerides and cholesterol) through esterification?
a) Methanol
b) Ethanol
c) Propanol
d) Butanol
Among the following pairs, which compound has the highest boiling point (assuming the same carbon chain length)?
a) Carboxylic acid
b) Alkane
c) Aldehyde
d) Ether
What is the common name of the acid formed in the reaction: 2-bromopentanoic acid → ?
a) Acetic acid
b) Lactic acid
c) Butyric acid
d) Formic acid
Which functional group is found in all carboxylic acids?
a) Hydroxyl group
b) Amino group
c) Alcohol group
d) Carboxyl group
When an ester reacts with water upon heating in the presence of NaOH, what product(s) are formed?
a) Two alcohols
b) An alcohol and an ether
c) A carboxylate salt and an alcohol
d) Hexanol and acetic acid
What two compounds react to produce hexyl acetate when heated together in the presence of a trace of acid?
a) Hexanoic acid and methanol
b) Butyric acid and lactic acid
c) Hexanol and acetic acid
d) Propanoic acid and ethanol
Lactic acid is composed of which chemical formula?
a) C2H4O2
b) C3H6O3
c) C4H8O4
d) C5H10O5
What is the condensed formula for tartaric acid?
a) C2H4O2
b) C3H6O3
c) C4H6O6
d) C5H10O5
Which of the following fruits naturally contains tartaric acid?
a) Lemons
b) Grapes
c) Oranges
d) Bananas
Tartaric acid is commonly used in which of the following?
a) Cleaning agents
b) Cosmetics
c) Food and beverages
d) Textile dyeing
What is the primary function of tartaric acid in recipes?
a) To enhance flavor
b) To act as a preservative
c) To provide a sour taste
d) To induce vomiting
Which of the following statements is true about tartaric acid?
a) It is a triprotic acid.
b) It occurs naturally in citrus fruits.
c) It is used to stabilize food products.
d) It is less susceptible to microorganism breakdown during fermentation.
What is the main difference between tartaric acid and citric acid?
a) Tartaric acid occurs in grapes, while citric acid occurs in citrus fruits.
b) Tartaric acid is diprotic, and citric acid is triprotic.
c) Tartaric acid is a stronger acid than citric acid.
d) Citric acid is used primarily in wine production.
In which of the following applications is tartaric acid NOT commonly used?
a) Leather tanning
b) Food flavoring
c) Textile dyeing
d) Electronics manufacturing
What role does tartaric acid play in the wine-making process?
a) It acts as a preservative.
b) It enhances the color of red wines.
c) It contributes to the sour taste of wine.
d) It stabilizes the pH during fermentation.
What is the chemical formula for oxalic acid?
a) C2H4O2
b) C3H6O3
c) C4H6O6
d) C5H10O5
How is oxalic acid primarily produced in the laboratory?
a) By the oxidation of glucose
b) By the oxidation of sucrose with nitric acid
c) By the reduction of citric acid
d) By the hydrolysis of acetic acid
Which of the following statements about oxalic acid is true?
a) It is a monoprotic acid.
b) It is found in citrus fruits.
c) It has a greater acidic strength than acetic acid.
d) It is used as a food preservative.
What is the equivalent weight of oxalic acid?
a) 31.5 g/mol
b) 63 g/mol
c) 90 g/mol
d) 126 g/mol
What is the chemical formula for salicylic acid?
a) C6H5COOH
b) C7H6O3
c) C8H8O4
d) C9H10O5
What is the primary use of salicylic acid in toothpaste?
a) As a flavoring agent
b) As an antiseptic
c) As a whitening agent
d) As a foaming agent
How does salicylic acid work in treating acne?
a) By promoting sebum secretion
b) By loosening and breaking apart desmosomes in the skin
c) By inhibiting bacterial growth
d) By increasing collagen production
Which skin condition can be treated using topical salicylic acid?
a) Eczema
b) Psoriasis
c) Rosacea
d) Vitiligo
What is the chemical formula for benzoic acid?
a) C6H5COOH
b) C7H6O2
c) C8H8O3
d) C9H10O4
Which of the following is a common use of benzoic acid?
a) Flavoring agent in soft drinks
b) Antiseptic in wound care
c) Solvent for plastics
d) Fuel additive
Benzoic acid is often found naturally in which type of food?
a) Dairy products
b) Fruits (e.g., cranberries)
c) Grains (e.g., wheat)
d) Meat
What is the primary use of benzyl benzoate in medicine?
a) Antifungal agent
b) Antihistamine
c) Scabicide and pediculicide
d) Muscle relaxant
In which industry is benzyl benzoate used as a fixative and solvent?
a) Perfume industry
b) Automotive industry
c) Textile industry
d) Construction industry
What is the chemical formula for dimethyl phthalate?
a) C6H4(COOCH3)2
b) C8H10O4
c) C10H10O4
d) C12H14O4
Dimethyl phthalate is commonly used in which application?
a) Insect repellent
b) Plasticizer
c) Antacid
d) Food preservative
Which plant is a natural source of methyl salicylate?
a) Willow tree
b) Rose bush
c) Oak tree
d) Pine tree
What is the common name for methyl salicylate when used as a topical analgesic?
a) Wintergreen oil
b) Peppermint extract
c) Eucalyptus oil
d) Lavender oil
What is the chemical name for aspirin?
a) Acetylsalicylic acid
b) Methyl salicylate
c) Benzoic acid
d) Benzyl benzoate
What is the primary therapeutic use of aspirin?
a) Pain relief and fever reduction
b) Antacid for indigestion
c) Antihypertensive agent
d) Anticoagulant
Aspirin belongs to which class of drugs?
a) Nonsteroidal anti-inflammatory drugs (NSAIDs)
b) Antibiotics
c) Antidepressants
d) Antihistamines
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