Class XII

Drugs which mimic the natural messenger by switching on the receptor are called
  1. Antagonists
  2. Inhibitor
  3. Agonists
  4. Chemical messenger
Very low concentrations of Sulphur – dioxide acts as
  1. Antiseptic only
  2. Disinfectant only
  3. Both Disinfectant and antiseptic
  4. None of these
Zantac, Cimetidine, Ranitidine are all
  1. Antihistamines
  2. Analgesics
  3. Antibiotics
  4. Antapyretics
Dettol is a mixture of
  1. Dilute aqueous solution of boric acid
  2. Dilute solution of iodine
  3. Soap solution containing bithionol
  4. Mixture of chloroxylenol and terpineol
Ortho – sulphobenzimideis
  1. An artificial sweetner
  2. A preservative
  3. An antibiotic
  4. An anti – oxidant
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