Multiple Choice Questions

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Soaps can be classified as :

  • carbohydrates

  • ether

  • salts of fatty acids

  • none of these


C.

salts of fatty acids

Soaps can be classified as salts of fatty acids. Because they are formed by the alkaline hydrolysis (NaOH) of oils or fats which produce sodium salt of fatty acids (soaps) and glycerol.


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Substance used as antiseptic for curing wounds is :

  • equanil

  • iodine

  • proguanil

  • bithional


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.


Paracetamol is:

  • methyl salicylate

  • phenyl salicylate

  • N-acetyl p-amino phenol

  • acetyl salicylic acid


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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Methyl orange is the example of which type of dye ?

  • Acid dye

  • Mordant dye

  • Azo dye

  • Both (a) and (c)


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


Formula of microcosmic salt is

  • Na2HPO4

  • Na(NH4)HPO4

  • K2HPO4

  • Na2PO4.K2PO4


Which of the following is not a broad spectrum antibiotic ?

  • Tetracycline

  • Chloromycetin

  • Penicillin

  • None of these


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Cobalt - 60 is used in the treatment of :

  • leukaemia

  • thyroid disorders

  • cancer

  • pneumonia


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