51. Which of the following is used as an antiseptic in mouthwashes?
- A. Chlorhexidine
- B. Paracetamol
- C. Ciprofloxacin
- D. Ibuprofen
Answer: A. Chlorhexidine
Explanation:
Chlorhexidine is an antiseptic used in mouthwashes to reduce bacteria in the mouth and prevent infections. Paracetamol and ibuprofen are pain relievers, and ciprofloxacin is an antibiotic.
52. Which of the following detergents is an example of a biodegradable detergent?
- A. Sodium stearate
- B. Sodium dodecyl sulfate
- C. Alkylbenzene sulfonate
- D. Sodium lauryl sulfate
Answer: A. Sodium stearate
Explanation:
Sodium stearate is a biodegradable soap that breaks down naturally in the environment. Sodium dodecyl sulfate and sodium lauryl sulfate are synthetic detergents, while alkylbenzene sulfonates may not be fully biodegradable.
53. Which of the following is an antimicrobial agent used in cosmetics?
- A. Parabens
- B. Sorbitol
- C. Glycerol
- D. Fructose
Answer: A. Parabens
Explanation:
Parabens are used as preservatives in cosmetics to prevent microbial growth. Sorbitol and glycerol are humectants, and fructose is a sugar.
54. Which of the following drugs is used as an antacid to treat acidity and ulcers?
- A. Ranitidine
- B. Aspirin
- C. Diazepam
- D. Amoxicillin
Answer: A. Ranitidine
Explanation:
Ranitidine is an H2 receptor antagonist that reduces stomach acid production, used to treat acid reflux and ulcers. Aspirin is an analgesic, diazepam is used for anxiety, and amoxicillin is an antibiotic.
55. Which of the following food additives is used to improve the texture of food products?
- A. Xanthan gum
- B. Sodium benzoate
- C. Aspartame
- D. Sorbic acid
Answer: A. Xanthan gum
Explanation:
Xanthan gum is used as a thickening agent to improve the texture of food products. Sodium benzoate is a preservative, aspartame is a sweetener, and sorbic acid is also used as a preservative.
56. Which of the following is a drug used in chemotherapy to treat cancer?
- A. Cisplatin
- B. Aspirin
- C. Penicillin
- D. Ibuprofen
Answer: A. Cisplatin
Explanation:
Cisplatin is a chemotherapy drug used to treat various cancers by damaging the DNA of cancer cells. Aspirin is used for pain, penicillin is an antibiotic, and ibuprofen is an anti-inflammatory drug.
57. Which of the following detergents is an anionic detergent?
- A. Sodium dodecyl sulfate
- B. Cetyltrimethylammonium chloride
- C. Polyethylene glycol
- D. Glycerol
Answer: A. Sodium dodecyl sulfate
Explanation:
Sodium dodecyl sulfate is an anionic detergent, meaning it carries a negative charge and is effective in cleaning greasy and oily surfaces. Cetyltrimethylammonium chloride is a cationic detergent, while polyethylene glycol and glycerol are non-ionic.
58. Which of the following drugs is used to treat fungal infections?
- A. Fluconazole
- B. Paracetamol
- C. Aspirin
- D. Ciprofloxacin
Answer: A. Fluconazole
Explanation:
Fluconazole is an antifungal drug used to treat fungal infections. Paracetamol and aspirin are pain relievers, and ciprofloxacin is an antibiotic.
59. Which of the following food additives is used as a flavor enhancer in savory foods?
- A. Monosodium glutamate (MSG)
- B. Sodium benzoate
- C. Aspartame
- D. Sorbic acid
Answer: A. Monosodium glutamate (MSG)
Explanation:
Monosodium glutamate (MSG) is used as a flavor enhancer in savory dishes to enhance their taste. Sodium benzoate and sorbic acid are preservatives, and aspartame is a sweetener.
60. Which of the following drugs is used as an anticoagulant to prevent blood clotting?
- A. Warfarin
- B. Ibuprofen
- C. Aspirin
- D. Paracetamol
Answer: A. Warfarin
Explanation:
Warfarin is an anticoagulant used to prevent blood clots in patients at risk for thrombosis. Ibuprofen and aspirin are pain relievers, and paracetamol is an analgesic and antipyretic.
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