Tag: therapeutic action of different classes of drugs

Questions Related to therapeutic action of different classes of drugs

The antiseptic action of $CHI _3$ is due to 

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Liberation of free iodine

  2. Iodoform

  3. Partially due to iodine and partically due to $CHI _3$ itself

  4. None of these

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Correct Option: B

Which of the following statements is/are not correct?

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Antipyretics are substances which are used to reduce the body temperature.

  2. Analgesics are substance which are used to relieve pain.

  3. Antiseptics and disinfectants can be used for the same purposes.

  4. Antiseptics can be safely applied on living tissues.

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Correct Option: C
Explanation:

Antiseptics and disinfectants cannot be used for the same purposes. Antiseptics are applied to living tissues whereas disinfectants are applied to non living tissues. However, both antiseptics and disinfectants kill micro organisms.

Most contraceptive pills contain:

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. norethindrone

  2. ethynylestradiol

  3. both A and B

  4. equanil

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Correct Option: C
Explanation:
Norethindrone is an example of a synthetic progesterone derivative, most widely used as an anti-fertility drug. The estrogen derivative which is used in combination with progesterone derivative is ethynylestradiol (novestrol). So, both are anti-fertility drugs.

1% Phenol is used as

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Disinfectant

  2. Antiseptic

  3. Antifertility drug

  4. Artificial sweetener

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Correct Option: A
Explanation:

One per cent solution of phenol is used as a disinfectant and $0.2$ per cent solution of phenol is an antiseptic so a higher concentration of the same compound is harmful to the body but can be used as a disinfectant to kill microorganisms on the non-living thing.

Which of the following is an insecticide?

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Bakelite

  2. Aspirin

  3. DDT

  4. TNT

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Correct Option: C
Explanation:

DDT (dichlorodiphenyltrichloroethane) is an organochlorine insecticide which is a colorless, crystalline solid, tasteless and almost odourless chemical compound.

Trinitrotoluene (2,4,6-trintrotoluene, TNT) is an extensively used explosive, which has been detected in soil and water at military sites and at munitions manufacturing and training operations.

Option C is correct.

Smallpox vaccine contains:

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. chemical medicines

  2. enzymes

  3. killed or dead microorganisms

  4. living microorganisms

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Correct Option: C
Explanation:
Smallpox vaccine contains killed or dead microorganisms. The smallpox vaccine helps the body develop immunity to smallpox disease. The vaccine is made from a virus called 'vaccinia' which is a pox-type virus related to smallpox.

The $pK _{a}$ of acetylsalicylic acid (aspirin) is $3.5$. The $pH$ of gastric juice in human stomach is about $2$ to $3$ and the $pH$ in the small intestine is about $8$. Aspirin will be

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. unionized in the small intestine as well as in the stomach.

  2. completely ionized in the small intestine as well as in the stomach.

  3. ionized in the stomach and almost unionized in the small intestine.

  4. ionized in the small intestine and almost unionized in the stomach.

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Correct Option: D

Salvarsan is an arsenic containing drug, which was first used for the treatment of:

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Syphilis

  2. Typhoid

  3. Meningitis

  4. Dysentery

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Correct Option: A
Explanation:

Salvarsan was first used in the treatment of Syphilis. It was also used to treat trypanosomiasis. 

Chloroquin is a drug which is used to control:

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Pneumonia

  2. Malaria

  3. Pain

  4. Ordinary fever

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Correct Option: B
Explanation:

Chloroquine is a drug which is used in the treatment and prevention of Malaria. It is an aminoquinoline.

Which of the following represents a biliquid propellant?

chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

  1. Nitroglycerin + Nitrocellulose

  2. $N _2O _4 +$ acrylic rubber

  3. $N _2O _4 +$ Unsymmetrical dimethylhydrazine

  4. Polybutadiene + Ammonium perchlorate

  5. None of the above

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Correct Option: C
Explanation:
Nitroglycerin is combined with nitrocellulose to form gunpowders.

$N _2O _4$ is added to acrylic rubber to increase its tensile strength.

Unsymmetrical dimethylhydrazine with $N _2O _4$ is used as a hypergolic liquid rocket propellant.

Ammonium perchlorate in combination with polybutadiene is used as a solid composite propellant. 

Hence, option C is correct.