PHARMACEUTICAL
CHEMISTRY-l Mcq Question Bank
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
2.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
3.Properties of Potassium permanganate
(a) colourless 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.
4.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.
5.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
6.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
7.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
8.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. .
9.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.
10.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.
11.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.
12.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.
13.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.
14.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.
15.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
16.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
17.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.
18.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.
19.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.
20.Intra cellular Electrolytes
(a) Potassium
(b) Magnesium
(c) Phosphate
(d) All of the above
21.Extracellular Electrolytes
(a) Chlorides
(b) Sodium
(c) Calcium
(d) Bicarbonates
(e) All of the above
22.Official compounds of Iron
(a) Ferrous sulphate.
(b) Ferrous Gluconate.
(c) Ferrous Fumarate.
(d) All of the above
23.Applications of Radiopharmaceuticals
(a) Radiotherapy
(b) Diagnostic application
(c) Research application
(d) Sterilization techniques
(e) All of the above
State whether the following statements are True or False
24.Antiseptics are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis.
(a) True
(b) False
25.Disinfectants are the agents which kill microorganisms like bacteria, fungi and viruses etc.
(a) True
(b) False
Reason: Disinfectants are substances that are applied to non-living/inanimate objects to destroy microorganisms that are living on the objects.
26.Assay is defined as any procedure used to determine the purity of the given substance.
(a) True
(b) False
27.The phenomenon of spontaneous and continuous emission of radiation by radioactive isotopes is known as radioactivity.
(a) True
(b) False
28.Half-life is the time taken for half of the radioactive nucleoid to disintegrate.
(a) True
(b) False
29.Germicides are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis.
(a) True
(b) False
Reason: Germicides are the agents which kill microorganisms like bacteria, fungi and viruses etc.
30.Achlorhydria Is defined as the condition in which there is no secretion of HCl in the stomach.
(a) True
(b) False
