Pharmaceutical chemistry (theory and practical) MCQ questions

In this Article pharmaceutical chemistry 1 mcq questions with answers pdf we have selected 30 Important Questions from previous year model answer papers. with the help of pharmaceutical chemistry 1 mcqs with answers D-pharmacy students can practice for their upcoming exams.

Pharmaceutical chemistry (theory and practical) MCQ questions

subjects in D Pharmacy 1st year 1st Year

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Pharmaceutical chemistry MCQ Questions

  1. Properties of Calcium carbonate
    (a) Decomposes in contact with oxidisable matter, reducing agents, on making alkaline, or standing.
    2 H2O2→2 H2O+ O2
    (b) It acts as an oxidizing or reducing agent depending upon the chemical environment.
    (c) Soluble in water, alcohol and ether.
    (d) It is insoluble in water and alcohol and water solubility is increased by the presence of CO2 and also by ammonium salt

Correct answer
(d)
It is insoluble in water and alcohol and water solubility is increased by the presence of CO2 and also by ammonium salt

  1. Properties of Sodium thiosulphate
    (a) It is a fine, white, microcrystalline powder.
    (b) It is soluble in water but insoluble in alcohol.
    (c) It is odourless and tasteless.
    (d) It is insoluble in water and alcohol and water solubility is increased by the presence of CO2 and also by ammonium salt

Correct answer
(b)
It is soluble in water but insoluble in alcohol.

  1. Properties of Potassium permanganate
    (a) colorless monoclinic prisms or as a crystalline powder
    (b) It is Strong oxidizing agent.
    (c) It occurs as transparent.
    (d) It is efflorescence in dry air and deliquescence in moist air.

Correct answer
(b)
It is Strong oxidizing agent.

  1. Properties of Hydrogen peroxide
    (a) It has a cool and bitter taste.
    (b) It is soluble in water but insoluble in alcohol.
    (c) It is freely soluble in water, soluble in glycerine and insoluble in alcohol.
    (d) Colourless and odourless liquid with slight acidic taste

Correct answer
(d)
Colourless and odourless liquid with slight acidic taste

  1. Properties of Calcium carbonate
    (a) It is soluble in water.
    (b) It is a strong acid & attacks metals forming their hydrochlorides with the evolution of hydrogen gas.
    (c) It is insoluble in water and alcohol and water solubility is increased by the presence of CO2 and also by ammonium salt.
    (d) At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen

Correct answer
(c)
It is insoluble in water and alcohol and water solubility is increased by the presence of CO2 and also by ammonium salt.

  1. Properties of Sodium thiosulphate
    (a) with a slight metallic scent and taste
    (b) It has a cool and bitter taste.
    (c) At room temperature
    (d) it is a colourless non-flammable gas

Correct answer
(b)
It has a cool and bitter taste.

  1. Properties of Nitrous oxide
    (a) commonly known as laughing gas or nitrous, is a chemical compound,
    (b) It occurs as a colourless fuming liquid with pungent odour.
    (c) It is miscible with water, alcohol & has a specific gravity of 1.18
    (d) It is odourless

Correct answer (A)

  1. Properties of Hydrochloric acid
    (a) Aqueous solution is acidic to litmus.
    (b) It is a strong acid & attacks metals forming their hydrochlorides with the evolution of hydrogen gas.
    (c) It occurs as colourless
    (d) transparent powder or granular crystals with a sweet astringent taste.

Correct answer
(b)
It is a strong acid & attacks metals forming their hydrochlorides with the evolution of hydrogen gas.

  1. Properties of Ammonium chloride
    (a) It is colourless, odourless, tasteless gas.
    (b) It gets oxidized by strong oxidizing agents liberating chlorine gas.
    (c) It is heavier than air with density 1.105
    (d) Slightly hygroscopic, soluble in water, sparingly soluble in alcohol but freely soluble in glycerine

Correct answer
(d)
Slightly hygroscopic, soluble in water, sparingly soluble in alcohol but freely soluble in glycerine

  1. Properties of sodium thiosulphate
    (a) Oxygen supports combustion.

(b) Chemically sodium is a strong oxidizing agent.
(c) It has a cooling, bitter taste
(d) Sodium readily dissolves in some molten metals like silver.

Correct answer
(c)
It has a cooling, bitter taste

Pharmaceutical chemistry mcq questions

  1. Uses of Hydrogen peroxide
    (a) It is used as an antacid and adsorbent
    (b) It is used as an emulsifying agent.
    (c) As an antidote in phosphorus and cyanide poisoning.
    (d) It reduces gastric hyperacidity and pain in gastric and duodenal ulcers.

Correct answer
(c)
As an antidote in phosphorus and cyanide poisoning.

  1. Uses of Calcium hydroxide
    (a) It is an ingredient in some skin lotions
    (b) Antiseptic and Disinfectant- For cleaning of wounds.
    (c) Used for bleaching the hair.
    (d) As an antidote in phosphorus and cyanide poisoning.

Correct answer (A)

  1. Uses of Boric acid
    (a) It is used to maintain acidic pH in various topical medications
    (b) It acts as an antacid.
    (c) Used as an astringent in infantile diarrhea & vomiting in the form of lime water.
    (d) It reacts with fatty acids, forming calcium soaps which act as an emulsifying agent.

Correct answer (A)

  1. Uses of Sodium thiosulphate
    (a) 1.6% solution is used as Deodorant, gargle and mouthwash.
    (b) it is employed as an ingredient in dusting powder.
    (c) used mainly as eye & mouth wash for local anti-infective action.
    (d) It is an effective Antifungal and used in skin infections such as dermatophytosis

Correct answer
(d)
It is an effective Antifungal and used in skin infections such as dermatophytosis

  1. Uses of Nitrous oxide
    (a) It produces anesthesia with analgesia
    (b) Boric acid is used in preparation of buffer solution.
    (c) used in ointment for emollient & antiseptic action.
    (d) It is used to maintain acidic pH in various topical medications

Ans: A

  1. Uses of Ferrous Sulphate-FeSO4
    (a) Its CO2 absorbing property is useful in certain types of gas traps.
    (b) It is used as a hematinic and used in the treatment anaemia@
    (c) It is an ingredient in some skin lotions
    (d) All of the above

Correct answer
(d) A
ll of the above

  1. Uses of Hydrochloric acid
    (a) It is used as a hematinic and used in the treatment anaemia. •
    (b) It is used to dye fabrics and in tanning leather, manufacturing of ink and in photography.
    (c) It is also used as a solvent in numerous industries
    (d) It has disinfectant properties.

Correct answer
(c)
It is also used as a solvent in numerous industries

  1. Uses of hydrogen peroxide.
    (a) It is used as a food preservative.
    (b) It is used as an antioxidant
    (c) It is used as an effective antidote in cyanide poisoning.
    (d) It acts as an oxidizing or reducing agent depending upon the chemical environment

Correct answer
(d)
It acts as an oxidizing or reducing agent depending upon the chemical environment

  1. Uses of Sodium nitrite
    (a) It is used as an effective antidote in cyanide poisoning
    (b) It is used as an antioxidant.
    (c) It is used as food preservative
    (d) It is used as an antioxidant.

Correct answer (A)

  1. Intra cellular Electrolytes
    (a) Potassium
    (b) Magnesium
    (c) Phosphate
    (d) All of the above

Correct answer
(d)
All of the above

  1. Extracellular Electrolytes
    (a) Chlorides
    (b) Sodium
    (c) Calcium
    (d) Bicarbonates
    (e) All of the above

Correct answer
(e)
All of the above

  1. Official compounds of Iron
    (a) Ferrous sulphate.
    (b) Ferrous Gluconate.
    (c) Ferrous Fumarate.
    (d) All of the above

Correct answer
(d)
All of the above

  1. Applications of Radiopharmaceuticals
    (a) Radiotherapy
    (b) Diagnostic application
    (c) Research application
    (d) Sterilization techniques
    (e) All of the above

Correct answer
(e)
All of the above

State whether the following statements are True are False

  1. Antiseptics are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis.

(a) True
(b) False

Correct answer (A)

  1. Disinfectants are the agents which kill microorganisms like bacteria, fungi and viruses etc.
    (a) True
    (b) False

Correct answer
(b)
False

Reason: Disinfectants are substances that are applied to non-living/inanimate objects to destroy microorganisms that are living on the objects.

  1. Assay is defined as any procedure used to determine the purity of the given substance.

(a) True (b) False

Correct answer (A)

  1. The phenomenon of spontaneous and continuous emission of radiation by radioactive isotopes is known as radioactivity.

(a) True (b) False

Correct answer (A)

  1. Half-life is the time taken for half of the radioactive nucleoid to disintegrate.

(a) True (b) False

Correct answer (A)

  1. Germicides are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis.
    (a) True (b) False

Correct answer
(b) Fals
e
Reason: Germicides are the agents which kill microorganisms like bacteria, fungi and viruses etc.

  1. Achlorhydria Is defined as the condition in which there is no secretion of HCl in the stomach.
    (a) True (b) False

Ans: A

Correct answer (A)

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