31. Which of the following food additives is used as an emulsifier?
- A. Lecithin
- B. Sodium chloride
- C. Sucrose
- D. Sorbic acid
Answer: A. Lecithin
Explanation:
Lecithin is an emulsifier that helps blend fat and water-based ingredients in foods. Sodium chloride is salt, sucrose is a sweetener, and sorbic acid is a preservative.
32. Which of the following drugs is an antihistamine?
- A. Cetirizine
- B. Ibuprofen
- C. Paracetamol
- D. Amoxicillin
Answer: A. Cetirizine
Explanation:
Cetirizine is an antihistamine used to treat allergic reactions such as hay fever and urticaria. Ibuprofen and paracetamol are pain relievers, and amoxicillin is an antibiotic.
33. Which of the following detergents is widely used in laundry detergents?
- A. Alkylbenzene sulfonate
- B. Sodium chloride
- C. Glycerol
- D. Citric acid
Answer: A. Alkylbenzene sulfonate
Explanation:
Alkylbenzene sulfonates are synthetic anionic detergents commonly used in household and industrial laundry detergents due to their strong cleaning properties.
34. Which of the following drugs is an example of a narcotic analgesic?
- A. Codeine
- B. Ibuprofen
- C. Tetracycline
- D. Diazepam
Answer: A. Codeine
Explanation:
Codeine is a narcotic analgesic used to treat mild to moderate pain and to suppress coughing. Ibuprofen is a non-narcotic pain reliever, tetracycline is an antibiotic, and diazepam is used for anxiety.
35. Which of the following is a synthetic food colorant?
- A. Sunset Yellow
- B. Ascorbic acid
- C. Sucrose
- D. Glucose
Answer: A. Sunset Yellow
Explanation:
Sunset Yellow is a synthetic food dye used to add color to processed foods and beverages. Ascorbic acid is vitamin C, and sucrose and glucose are sugars.
36. Which of the following is a broad-spectrum antibiotic?
- A. Ciprofloxacin
- B. Aspirin
- C. Diazepam
- D. Paracetamol
Answer: A. Ciprofloxacin
Explanation:
Ciprofloxacin is a broad-spectrum antibiotic effective against a wide variety of bacterial infections. Aspirin and paracetamol are used for pain relief, and Diazepam is an anti-anxiety drug.
37. Which of the following food additives is used to prevent oxidation in foods?
- A. Butylated hydroxytoluene (BHT)
- B. Aspartame
- C. Sodium chloride
- D. Benzoic acid
Answer: A. Butylated hydroxytoluene (BHT)
Explanation:
BHT is an antioxidant used to prevent fats and oils in food from becoming rancid due to oxidation. Aspartame is a sweetener, sodium chloride is salt, and benzoic acid is a preservative.
38. Which of the following drugs is used to treat bacterial infections?
- A. Amoxicillin
- B. Aspirin
- C. Ibuprofen
- D. Diazepam
Answer: A. Amoxicillin
Explanation:
Amoxicillin is a penicillin-type antibiotic used to treat various bacterial infections. Aspirin and ibuprofen are pain relievers, and Diazepam is used to treat anxiety.
39. Which of the following is a preservative used in cosmetics and food products?
- A. Sodium benzoate
- B. Sodium chloride
- C. Glycerol
- D. Ethanol
Answer: A. Sodium benzoate
Explanation:
Sodium benzoate is used as a preservative in food and cosmetics to inhibit microbial growth. Sodium chloride is salt, glycerol is a moisturizer, and ethanol is used as a solvent and disinfectant.
40. Which of the following is used as an anti-inflammatory drug?
- A. Ibuprofen
- B. Tetracycline
- C. Amoxicillin
- D. Ciprofloxacin
Answer: A. Ibuprofen
Explanation:
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to reduce inflammation, pain, and fever. Tetracycline, amoxicillin, and ciprofloxacin are antibiotics.
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