Tag: therapeutic action of different classes of drugs

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Multiple choice chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

Reactive dyes utilize a _________ attached to a substituent that is capable of directly reacting with the fibre substrate.

  1. chromophore

  2. auxochrome

  3. chlorophyll

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reactive dyes utilize a chromophore attached to a substituent that is capable of directly reacting with the fiber substrate. The covalent bonds that attach the reactive dye to natural fibers make them among the most permanent of dyes. 'Cold' reactive dyes, such as Procion MX, Cibacron F, and Drimarene K, are very easy to use because the dye can be applied at room temperature. Reactive dyes are by far the best choice for dyeing cotton and other cellulose fibers at home or in the art studio.

Hence option $A$ is correct.

Multiple choice chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

Dispersed dye was originally developed for the dyeing of cellulose acetate,
and are water-insoluble this dye is mainly used to dye:

  1. nylon

  2. polyster

  3. both A and B

  4. wool
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

Dispersed dyes were originally developed for the dyeing of cellulose acetate and are water-insoluble. The dyes are finely ground in the presence of a
dispersing agent and sold as a paste, or spray-dried and sold as a
powder. Their main use is to dye polyester but they can also be used to dye nylon.
Hence option C is correct.

Multiple choice chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

Assertion : Penicillin (G) is an antihistamine.


Reason: Penicillin (G) is effective against gram-positive bacteria.

Read the above assertion and reason and choose the correct option regarding it.

  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

  3. Both Assertion and Reason are incorrect

  4. Assertion is correct but Reason is incorrect

  5. Assertion is incorrect but Reason is correct
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The assertion that Penicillin (G) is an antihistamine is incorrect. Penicillin (G) is an antibiotic. It is a narrow spectrum antibiotic. Hence it effective against both gram positive as well as Gram negative bacteria. Therefore, the Reason is correct.
Hence, option E is the right answer.

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

What is tincture of iodine?

  1. 2-3% solution of iodine in alcohol-water mixture.

  2. A mixture of iodine in chloroxylenol.

  3. A mixture of 0.2% phenol and 2-3% iodine in water.

  4. 2-3% solution of iodine in potassium iodide.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

2-3% solution of iodine in alcohol-water mixture is known as tincture of iodine. It is a powerful antiseptic.

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

Which of the following statements is not correct?

  1. Antiseptics can be safely applied to the living tissues.

  2. Antiseptics can be incorporated into deodorants, face powders and soaps.

  3. Disinfectants can also be applied to the skin safely.

  4. A very dilute solution of a few disinfectants can be used as antiseptics.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Disinfectants are harmful to the living tissues hence they are not applied to the skin.

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

Antiseptic chloroxylenol is:

  1. $4$ - chloro $3, 5 $ - dimethylphenol
  2. $3$ - chloro $3, 5 $ - dimethylphenol
  3. $4$ - chloro $2, 5 $ - dimethylphenol
  4. $5$ - chloro $3, 4 $ - dimethylphenol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chloroxylenol also known as para-chloro-meta-xylenol (PCMX), is an antiseptic and disinfectant agent used for skin disinfection and cleaning surgical instruments. Its chemical names are given as 4-Chloro-3,5-dimethylphenol.

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

The formulation of dettol contains:

  1. chloroxylenol

  2. terpineol

  3. Isopropyl alcohol

  4. all of these.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dettol contains Chloroxylenol (comprises of 4.8% of dettol's total admixture) which is an antiseptic and disinfectant used for skin disinfection and cleaning surgical instruments, Terpineol which is a monoterpene alcohol that has been isolated from variety of sources such as cajuput oil, pine oil, and petotgrain oil. and isopropyl alcohol.

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

A drug which is effective in curing malaria is:

  1. aspirin.

  2. quinine.

  3. morphine.

  4. analgin.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • An antimicrobial tends to destroy/prevent development or inhibit the pathogenic action of microbes such as bacteria (antibacterial drugs), fungi (antifungal agents), virus (antiviral agents), or other parasites (antiparasitic drugs) selectively.
  • Malaria is a viral disease and caused by female anopheles mosquito. The drugs which are used to cure malaria are quinine,,Hydroxychloroquine Mefloquine etc.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following can be used as an analgesic without causing addiction?

  1. Morphine

  2. Aspirin

  3. Heroin

  4. Codeine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Analgesics reduce or abolish pain without causing impairment of
consciousness, mental confusion, incoordination or paralysis or some
other disturbances of nervous system
Aspirin and paracetamol belong to the class of non-narcotic (non-addictive) analgesics. Aspirin inhibits the synthesis of chemicals known as prostaglandins which stimulate inflammation in the tissue and cause pain. These drugs are effective in relieving skeletal pain such as that due to arthritis. These drugs have many other effects such as reducing fever (antipyretic) and preventing platelet coagulation. Because of its anti blood clotting action, aspirin finds use in prevention of heart attacks.
Morphine,Heroin,Codeine belongs to narcotic(addictive) analgesics.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following antibiotics is bactericidal?

  1. Erythromycin

  2. Tetracycline

  3. Penicillin

  4. Chloramphenicol
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • An antibiotic refers to a substance produced wholly or partly by chemical synthesis, which in low concentrations inhibits the growth or destroys microorganisms by intervening in their metabolic processes.
  • Antibiotics have either cidal (killing) effect or a static (inhibitory) effect on microbes.
  • Bactericidal-Penicillin,Aminoglycosides,Ofloxacin
  • Bacteriostatic-Erythromycin,Tetracycline,Chloramphenicol
  • Ampicillin and Amoxycillin are synthetic modifications of penicillins. These have broad spectrum. It is absolutely essential to test the patients for sensitivity (allergy) to penicillin before it is administered