Antiseptics and disinfectants either kill or prevent growth of mi

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 Multiple Choice QuestionsMultiple Choice Questions

131.

Which of the following is not a broad spectrum antibiotic ?

  • Tetracycline

  • Chloromycetin

  • Penicillin

  • None of these


132.

Substance used as antiseptic for curing wounds is :

  • equanil

  • iodine

  • proguanil

  • bithional


133.

The IUPAC name of compound is :

CH2=CH-CH(CH3)2

  • 1 - isopropylethylene

  • 2 - vinyl propane

  • 3 - methyl 1 - butene

  • 1 , 1 , dimethyl 1 , 2 - propene


134.

Cobalt - 60 is used in the treatment of :

  • leukaemia

  • thyroid disorders

  • cancer

  • pneumonia


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135.

Methyl orange is the example of which type of dye ?

  • Acid dye

  • Mordant dye

  • Azo dye

  • Both (a) and (c)


136.

Which one of the following is not a surfactant?

  • CH3 - (CH2)15 - (CH3)2N+ - CH3Br-

  • CH3 - (CH2)14 - CH2 - NH2

  • CH3 - (CH2)16 - CH2OSO2-Na+

  • OHC - (CH2)14 - CH2 - COO-Na+


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137.

Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following is not true.

  • A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.

  • Chlorine and iodine are used as strong disinfectants.

  • Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics.

  • Disinfectants harm the living tissues.


C.

Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics.

Antiseptics and disinfectants both either kill or prevent the growth of microorganisms. The main point of difference between these two is that the former (antiseptics) are used for living beings whereas disinfectants are not safe for living tissues. These are actually used for inanimate objects like floors, tiles etc. A substance like phenol in its lower concentration (0.2%) behaves as antiseptic wheras in higher concentration (1%) as disinfectant. Chlorine and iodine are strong disinfectants whereas dilute solutions of boric acid and hydrogen peroxide are mild antiseptics.


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138.

Paracetamol is:

  • methyl salicylate

  • phenyl salicylate

  • N-acetyl p-amino phenol

  • acetyl salicylic acid


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139.

Soaps can be classified as :

  • carbohydrates

  • ether

  • salts of fatty acids

  • none of these


140.

Phenacetin is used as :

  • antipyretics

  • antiseptics

  • analgesic

  • antimalarials


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