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Pharmaceutical Chemistry MCQs

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Pharmaceutical Chemistry MCQs

Which of the following is the chemical formula for sodium chloride?
- a) NaCl
- b) KCl
- c) Na2CO3
- d) NaOH
  Answer: a) NaCl
Which of the following is an example of a weak acid?
- a) Hydrochloric acid
- b) Sulfuric acid
- c) Acetic acid
- d) Nitric acid
  Answer: c) Acetic acid
The pH of a neutral solution is:
- a) 0
- b) 7
- c) 14
- d) 3
  Answer: b) 7
Which of the following compounds is commonly known as aspirin?
- a) Acetaminophen
- b) Ibuprofen
- c) Acetylsalicylic acid
- d) Paracetamol
  Answer: c) Acetylsalicylic acid
Which of the following is used as a preservative in pharmaceutical formulations?
- a) Sodium benzoate
- b) Acetone
- c) Sodium hydroxide
- d) Ethanol
  Answer: a) Sodium benzoate
Which of the following is a primary standard substance in titration?
- a) Sodium hydroxide
- b) Potassium dichromate
- c) Hydrochloric acid
- d) Sulfuric acid
  Answer: b) Potassium dichromate
Which of the following is a reducing sugar?
- a) Glucose
- b) Sucrose
- c) Starch
- d) Cellulose
  Answer: a) Glucose
The molecular weight of water (H2O) is:
- a) 18 g/mol
- b) 28 g/mol
- c) 32 g/mol
- d) 44 g/mol
  Answer: a) 18 g/mol
Which of the following is a common laboratory solvent?
- a) Ethanol
- b) Sodium chloride
- c) Glucose
- d) Calcium carbonate
  Answer: a) Ethanol
Which of the following is an organic acid?
- a) Hydrochloric acid
- b) Sulfuric acid
- c) Citric acid
- d) Nitric acid
  Answer: c) Citric acid
Which of the following is the primary component of vinegar?
- a) Lactic acid
- b) Citric acid
- c) Acetic acid
- d) Tartaric acid
  Answer: c) Acetic acid
Which of the following is an example of a non-polar solvent?
- a) Water
- b) Ethanol
- c) Benzene
- d) Acetone
  Answer: c) Benzene
Which of the following is the process of converting liquid to gas at a temperature below boiling point?
- a) Sublimation
- b) Evaporation
- c) Condensation
- d) Freezing
  Answer: b) Evaporation
Which of the following is used as an antacid?
- a) Sodium bicarbonate
- b) Sodium chloride
- c) Sodium sulfate
- d) Sodium hydroxide
  Answer: a) Sodium bicarbonate
Which of the following is a common indicator used in acid-base titrations?
- a) Methyl orange
- b) Phenolphthalein
- c) Litmus
- d) All of the above
  Answer: d) All of the above
Which of the following is a characteristic of covalent bonds?
- a) High melting point
- b) Transfer of electrons
- c) Sharing of electrons
- d) Conducts electricity in molten state
  Answer: c) Sharing of electrons
The chemical formula for sulfuric acid is:
- a) HCl
- b) H2SO4
- c) HNO3
- d) H3PO4
  Answer: b) H2SO4
Which of the following is a gas at room temperature?
- a) Water
- b) Carbon dioxide
- c) Sodium chloride
- d) Ethanol
  Answer: b) Carbon dioxide
Which of the following is used as a pH buffer in biological systems?
- a) Sodium chloride
- b) Sodium bicarbonate
- c) Potassium iodide
- d) Calcium sulfate
  Answer: b) Sodium bicarbonate
Which of the following is a type of chemical reaction where two or more substances combine to form a single product?
- a) Decomposition reaction
- b) Combination reaction
- c) Displacement reaction
- d) Redox reaction
  Answer: b) Combination reaction
Which of the following is an alkaloid used as a bronchodilator?
- a) Caffeine
- b) Nicotine
- c) Theophylline
- d) Morphine
  Answer: c) Theophylline
Which of the following is the main constituent of natural gas?
- a) Ethane
- b) Propane
- c) Butane
- d) Methane
  Answer: d) Methane
Which of the following is a property of ionic compounds?
- a) High melting points
- b) Low solubility in water
- c) Poor electrical conductivity in solution
- d) Non-crystalline structure
  Answer: a) High melting points
Which of the following is the process by which a solid turns directly into a gas?
- a) Melting
- b) Evaporation
- c) Sublimation
- d) Deposition
  Answer: c) Sublimation
Which of the following is a functional group present in alcohols?
- a) Carboxyl (-COOH)
- b) Hydroxyl (-OH)
- c) Amino (-NH2)
- d) Carbonyl (-C=O)
  Answer: b) Hydroxyl (-OH)
Which of the following compounds is used in the preparation of soaps?
- a) Glycerol
- b) Sodium hydroxide
- c) Sodium chloride
- d) Potassium permanganate
  Answer: b) Sodium hydroxide
Which of the following is the chemical name of Vitamin C?
- a) Ascorbic acid
- b) Citric acid
- c) Folic acid
- d) Pantothenic acid
  Answer: a) Ascorbic acid
Which of the following is an essential trace element required by the human body?
- a) Sodium
- b) Calcium
- c) Iron
- d) Zinc
  Answer: d) Zinc
Which of the following is a chemical compound used as a disinfectant in drinking water?
- a) Sodium hypochlorite
- b) Sodium chloride
- c) Potassium iodide
- d) Sodium sulfate
  Answer: a) Sodium hypochlorite
Which of the following is a polymer made from glucose units?
- a) Cellulose
- b) Starch
- c) Glycogen
- d) All of the above
  Answer: d) All of the above
Which of the following is used as an anticoagulant?
- a) Heparin
- b) Insulin
- c) Penicillin
- d) Aspirin
  Answer: a) Heparin
Which of the following is a chemical process used to extract metals from their ores?
- a) Smelting
- b) Filtration
- c) Distillation
- d) Precipitation
  Answer: a) Smelting
Which of the following is a natural polymer?
- a) Nylon
- b) Polyethylene
- c) Cellulose
- d) Teflon
  Answer: c) Cellulose
Which of the following is a method of sterilization using heat?
- a) Autoclaving
- b) Filtration
- c) Radiation
- d) Chemical sterilization
  Answer: a) Autoclaving
Which of the following is a radioactive isotope used in medical imaging?
- a) Iodine-131
- b) Carbon-14
- c) Uranium-238
- d) Hydrogen-3
  Answer: a) Iodine-131
Which of the following is an organic solvent commonly used in extractions?
- a) Hexane
- b) Sodium hydroxide
- c) Water
- d) Sodium chloride
  Answer: a) Hexane
Which of the following is an essential amino acid?
- a) Glycine
- b) Alanine
- c) Lysine
- d) Glutamine
  Answer: c) Lysine
Which of the following is a base used in the preparation of antacids?
- a) Sodium hydroxide
- b) Calcium carbonate
- c) Potassium hydroxide
- d) Ammonium hydroxide
  Answer: b) Calcium carbonate
Which of the following is a characteristic of transition metals?
- a) High electronegativity
- b) Low melting points
- c) Formation of colored compounds
- d) Non-conductive in nature
  Answer: c) Formation of colored compounds
Which of the following is an example of a coordination compound?
- a) Sodium chloride
- b) Potassium permanganate
- c) Ammonia
- d) Cisplatin
  Answer: d) Cisplatin
Which of the following is an oxidizing agent?
- a) Hydrogen peroxide
- b) Sodium chloride
- c) Glucose
- d) Water
  Answer: a) Hydrogen peroxide
Which of the following is used in the Synthesis of aspirin?
- a) Acetic anhydride
- b) Sodium hydroxide
- c) Ethanol
- d) Methanol
  Answer: a) Acetic anhydride
Which of the following is an isomer of ethanol?
- a) Methanol
- b) Propanol
- c) Diethyl ether
- d) Acetone
  Answer: c) Diethyl ether
Which of the following elements is found in all organic compounds?
- a) Oxygen
- b) Nitrogen
- c) Carbon
- d) Hydrogen
  Answer: c) Carbon
Which of the following is used as a catalyst in the hydrogenation of oils?
- a) Platinum
- b) Iron
- c) Nickel
- d) Copper
  Answer: c) Nickel
Which of the following is a chemical formula for glucose?
- a) C6H12O6
- b) C5H10O5
- c) C4H8O4
- d) C3H6O3
  Answer: a) C6H12O6
Which of the following is a chemical formula for methane?
- a) CH4
- b) C2H6
- c) C3H8
- d) C4H10
  Answer: a) CH4
Which of the following is used in the titration of acids?
- a) Phenolphthalein
- b) Methyl orange
- c) Litmus
- d) All of the above
  Answer: d) All of the above
Which of the following is a metal used in the preparation of amalgams?
- a) Mercury
- b) Sodium
- c) Potassium
- d) Calcium
  Answer: a) Mercury
Which of the following is used as a drying agent in laboratories?
- a) Sodium sulfate
- b) Potassium iodide
- c) Calcium chloride
- d) Ammonium nitrate
  Answer: c) Calcium chloride
Which of the following is used to neutralize acids in cases of acid ingestion?
- a) Magnesium hydroxide
- b) Sodium chloride
- c) Potassium sulfate
- d) Calcium carbonate
  Answer: a) Magnesium hydroxide