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Home/ Chemistry/Chemistry MCQ with Answer Explanation : Drugs, Detergents and Food Additives.

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On: October 14, 2024 Posted in Chemistry, Education, Exam Comments: 0 Views: 998

Chemistry MCQ with Answer Explanation : Drugs, Detergents and Food Additives.

74. Which of the following is used as an artificial food coloring agent?

  • A. Allura Red
  • B. Citric acid
  • C. Glucose
  • D. Fructose

Answer: A. Allura Red

Explanation:
Allura Red is a synthetic food dye used to impart a red color to various food and beverage products. Citric acid is a flavoring agent, and glucose and fructose are sugars.

75. Which of the following is a drug used to treat anxiety disorders?

  • A. Diazepam
  • B. Paracetamol
  • C. Aspirin
  • D. Ibuprofen

Answer: A. Diazepam

Explanation:
Diazepam is a benzodiazepine used to treat anxiety, muscle spasms, and seizures. Paracetamol, aspirin, and ibuprofen are pain relievers and anti-inflammatory drugs.

76. Which of the following food additives is used to prevent microbial growth in processed foods?

  • A. Sorbic acid
  • B. Citric acid
  • C. Glucose
  • D. Aspartame

Answer: A. Sorbic acid

Explanation:
Sorbic acid is used as a preservative in processed foods to prevent microbial growth. Citric acid is used for flavoring, glucose is a sugar, and aspartame is a sweetener.

77. Which of the following drugs is used to treat bacterial infections of the skin?

  • A. Tetracycline
  • B. Aspirin
  • C. Paracetamol
  • D. Ibuprofen

Answer: A. Tetracycline

Explanation:
Tetracycline is an antibiotic used to treat bacterial infections of the skin, such as acne and rosacea. Aspirin, paracetamol, and ibuprofen are pain relievers and anti-inflammatory drugs.

78. Which of the following detergents is most commonly used in dishwashing liquids?

  • A. Sodium lauryl sulfate
  • B. Sodium chloride
  • C. Polyethylene glycol
  • D. Glycerol

Answer: A. Sodium lauryl sulfate

Explanation:
Sodium lauryl sulfate is a surfactant used in dishwashing liquids to remove grease and oil. Sodium chloride is salt, polyethylene glycol is a non-ionic surfactant, and glycerol is a humectant.

79. Which of the following drugs is an antihypertensive agent?

  • A. Losartan
  • B. Paracetamol
  • C. Aspirin
  • D. Ibuprofen

Answer: A. Losartan

Explanation:
Losartan is an angiotensin receptor blocker (ARB) used to treat high blood pressure (hypertension). Paracetamol, aspirin, and ibuprofen are used for pain relief.

80. Which of the following is a synthetic antioxidant used to preserve food?

  • A. Butylated hydroxyanisole (BHA)
  • B. Citric acid
  • C. Aspartame
  • D. Sodium benzoate

Answer: A. Butylated hydroxyanisole (BHA)

Explanation:
BHA is a synthetic antioxidant used to preserve food by preventing the oxidation of fats and oils. Citric acid is a flavoring agent, aspartame is a sweetener, and sodium benzoate is a preservative.

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