Powders MCQs

MCQ on Pharmaceutical powders

Question 1: What is the definition of a powder?

• A. A solid dosage form of medicament which is meant for internal or external use.
• B. A mixture of finely divided drug and/or chemicals in a dry form.
• C. A combination of two or more solid dosage forms.
• D. A solid dosage form that is administered orally.

Answer: B. A mixture of finely divided drug and/or chemicals in a dry form.

Question 2: What are the advantages of powders?

• A. Easy to administer
• B. Rapid onset of action
• C. Convenient to carry
• D. Stable dosage form

Answer: All of the above

Question 3: What are the disadvantages of powders?

• A. Difficult to dispense accurately
• B. Can be bitter or unpleasant to taste
• C. Hygroscopic and deliquescent drugs cannot be dispensed in powder form
• D. Can be irritating to the lungs

Answer: All of the above

Question 4: What are the different types of powders?

• A. Simple powders
• B. Compound powders
• C. Dusting powders
• D. Effervescent powders
• E. Efflorescent powders
• F. Hygroscopic powders
• G. Eutectic mixtures

Answer: All of the above

Question 5: What is a simple powder?

• A. A powder that contains only one ingredient.
• B. A powder that contains two or more ingredients.
• C. A powder that is used for internal administration.
• D. A powder that is used for external administration.

Answer: A. A powder that contains only one ingredient.

Question 6: What is a compound powder?

• A. A powder that contains two or more ingredients.
• B. A powder that is used for internal administration.
• C. A powder that is used for external administration.
• D. A powder that is dispensed in bulk.

Answer: A. A powder that contains two or more ingredients.

Question 7: What is a dusting powder?

• A. A powder that is used for external application to the skin.
• B. A powder that is used to absorb moisture and reduce friction.
• C. A powder that is used to protect the skin from irritation.
• D. A powder that is used to deliver medication to the skin.

Answer: All of the above

Question 8: What is an effervescent powder?

• A. A powder that contains two or more ingredients that react when mixed with water to produce carbon dioxide gas.
• B. A powder that is used to relieve heartburn and indigestion.
• C. A powder that is used to cleanse the colon.
• D. A powder that is used to promote hydration.

Answer: A. A powder that contains two or more ingredients that react when mixed with water to produce carbon dioxide gas.

Question 9: What is an efflorescent powder?

• A. A powder that loses water of crystallization when exposed to air.
• B. A powder that absorbs water from the air.
• C. A powder that melts when exposed to air.
• D. A powder that reacts with air to form an explosive mixture.

Answer: A. A powder that loses water of crystallization when exposed to air.

Question 10: What is a hygroscopic powder?

• A. A powder that absorbs water from the air.
• B. A powder that loses water of crystallization when exposed to air.
• C. A powder that melts when exposed to air.
• D. A powder that reacts with air to form an explosive mixture.

Answer: A. A powder that absorbs water from the air.

Question 11: What is a eutectic mixture?

• A. A mixture of two or more substances that has a lower melting point than any of the individual substances.
• B. A mixture of two or more substances that has a higher melting point than any of the individual substances.
• C. A mixture of two or more substances that is more soluble than any of the individual substances.
• D. A mixture of two or more substances that is less soluble than any of the individual substances.

Answer: A. A mixture of two or more substances that has a lower melting point than any of the individual substances.

Question 12: What is geometric dilution?

• A. A method of diluting a powder by mixing it with a diluent in a specific ratio.
• B. A method of diluting a powder by mixing it with a diluent in a random ratio.
• C. A method of diluting a powder by mixing it with a diluent until the desired concentration is reached.
• D. A method of diluting a powder by mixing it with a diluent until the desired volume is reached.

Answer: A. A method of diluting a powder by mixing it with a diluent in a specific ratio.

Question 13: What is the official preparation of simple and compound powders?

• A. Powders are dispensed in powder papers.
• B. Powders are dispensed in capsules.
• C. Powders are dispensed in tablets.
• D. Powders are dispensed in bulk.

Answer: A. Powders are dispensed in powder papers.

Question 14: Which of the following is not a dusting powder?

• A. Talcum powder
• B. Cornstarch powder
• C. Boric acid powder
• D. Aspirin powder

Answer: D. Aspirin powder

Question 15: Which of the following is not an effervescent powder?

• A. Sodium bicarbonate + citric acid
• B. Sodium bicarbonate + tartaric acid
• C. Sodium bicarbonate + acetic acid
• D. Sodium bicarbonate + hydrochloric acid

Answer: D. Sodium bicarbonate + hydrochloric acid

Question 16: Which of the following is not an efflorescent powder?

• A. Sodium sulfate
• B. Sodium carbonate
• C. Copper sulfate
• D. Potassium alum

Answer: D. Potassium alum

Question 17: Which of the following is not a hygroscopic powder?

• A. Calcium chloride
• B. Sodium chloride
• C. Magnesium chloride
• D. Potassium chloride

Answer: D. Potassium chloride

Question 18: Which of the following is not a eutectic mixture?

• A. Sodium chloride + potassium chloride
• B. Lead + tin
• C. Bismuth + tin
• D. Ice + salt

Answer: A. Sodium chloride + potassium chloride

Question 19: What is the formula for geometric dilution?

• A. C1/C2 = V1/V2
• B. C1V1 = C2V2
• C. C1 + C2 = V1 + V2
• D. C1 – C2 = V1 – V2

Answer: B. C1V1 = C2V2

Question 20: Which of the following is not a use of geometric dilution?

• A. To prepare a dilution of a powder for internal administration
• B. To prepare a dilution of a powder for external administration
• C. To prepare a dilution of a powder for use in a chemical reaction
• D. To prepare a dilution of a powder for use in a biological assay

Answer: D. To prepare a dilution of a powder for use in a biological assay

Question 21: Which of the following is not a factor that affects the flowability of a powder?

• A. Particle size
• B. Particle shape
• C. Surface area of the particles
• D. Humidity

Answer: D. Humidity

Question 22: Which of the following is not a method of improving the flowability of a powder?

• A. Adding a glidant
• B. Adding a lubricant
• C. Reducing the particle size
• D. Increasing the humidity

Answer: D. Increasing the humidity

Question 23: Which of the following is not a method of mixing powders?

• A. Blending
• B. Tumbling
• C. Sifting
• D. Grinding

Answer: D. Grinding

Question 24: Which of the following is not a type of packaging for powders?

• A. Powder papers
• B. Capsules
• C. Tablets
• D. Vials

Answer: D. Vials

Question 25: Which of the following is not a storage condition for powders?

• A. Store in a cool, dry place
• B. Protect from light
• C. Keep tightly closed
• D. Store in a refrigerator

Answer: D. Store in a refrigerator

Question 26: Which of the following is not a quality control test for powders?

• A. Bulk density
• B. Angle of repose
• C. Solubility
• D. Flowability

Answer: C. Solubility

Question 27: Which of the following is not a route of administration for powders?

• A. Oral
• B. Topical
• C. Parenteral
• D. Inhalation

Answer: C. Parenteral

Question 28: Which of the following is not a common use for powders?

• A. Pharmaceutical
• B. Food
• C. Cosmetic
• D. Industrial

Answer: C. Cosmetic

Question 29: Which of the following is not a safety consideration when using powders?

• A. Avoid inhaling the powder
• B. Avoid contact with the eyes and skin
• C. Wash hands thoroughly after handling the powder
• D. Store the powder in a safe place

Answer: D. Store the powder in a safe place

Question 30: Which of the following is not an example of a bulk powder?

• A. Flour
• B. Sugar
• C. Salt
• D. Cement

Answer: D. Cement

Question 31: Which of the following is not an example of a fine powder?

• A. Talcum powder
• B. Cornstarch powder
• C. Boric acid powder
• D. Aspirin powder

Answer: D. Aspirin powder

Question 32: Which of the following is not an example of a powder mixture?

• A. Sand and gravel
• B. Salt and pepper
• C. Sugar and flour
• D. Oil and water

Answer: D. Oil and water

Question 33: Which of the following is not a use of geometric dilution in pharmacy?

• A. To prepare a dilution of a potent drug for internal administration
• B. To prepare a dilution of a drug for external application
• C. To prepare a dilution of a drug for use in a chemical reaction
• D. To prepare a dilution of a drug for use in a biological assay

Answer: C. To prepare a dilution of a drug for use in a chemical reaction

Question 34: Which of the following is not a quality control test for powder mixtures?

• A. Uniformity of content
• B. Uniformity of blend
• C. Flowability
• D. Solubility

Answer: D. Solubility

Question 35: Which of the following is not a safety consideration when using powder mixtures?

• A. Avoid inhaling the powder
• B. Avoid contact with the eyes and skin
• C. Wash hands thoroughly after handling the powder
• D. Store the powder mixture in a safe place

Answer: D. Store the powder mixture in a safe place

Question 36: Which of the following is not an example of a powder dosage form?

• A. Capsules
• B. Tablets
• C. Granules
• D. Powders

Answer: D. Powders

Question 37: Which of the following is not an example of a powder administration device?

• A. Spoon
• B. Inhaler
• C. Capsule
• D. Tablet

Answer: D. Tablet

Question 38: Which of the following is not a common challenge in the formulation of powder dosage forms?

• A. Ensuring good flowability
• B. Ensuring uniform content
• C. Ensuring dissolution
• D. Ensuring stability

Answer: D. Ensuring stability

Question 39: Which of the following is not a common excipient used in powder formulations?

• A. Lactose
• B. Starch
• C. Talcum powder
• D. Magnesium stearate

Answer: C. Talcum powder

Question 40: Which of the following is not a method of manufacturing powder dosage forms?

• A. Blending
• B. Granulation
• C. Trituration
• D. Compression

Answer: B. Granulation

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