The pH value of gastric juice in human stomach is about 1.8 and i

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 Multiple Choice QuestionsMultiple Choice Questions

271.

The functional groups present in aspirin are

  • OH, NHCOCH3

  • OC2H5, COOH

  • COOH, OCOCH3

  • H, OCOCH3


272.

Cetyltrimethyl ammonium bromide (TAB) is popular is

  • antioxidant

  • antibiotic

  • surfactant

  • tranquillizer


273.

Drugs are the chemicals with

  • low molecular masses

  • high molecular masses

  • low atomic mass

  • high atomic mass


274.

Paracetamol is a following drug

  • antipyretic

  • antiseptic

  • antibiotic

  • anaesthetic


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275.

Which among the following is not an antibiotic?

  • Erythromycin

  • Oxytocin

  • Penicillin

  • Tetracycline


276.

Which ofthe following is a nacrotic analgesic?

  • Paracetamol

  • Aspirin

  • Morphine

  • None of the above


277.

Which is incorrectly matched?

  • Golden spangles . PbCrO4

  • Cu2S + FeS: Matte

  • ZnO : Pompholyx

  • 10 vol H2O2 : 3.035%


278.

A drug that is antipyretic as well as analgesic is

  • penicillin

  • chloroquin

  • para-acetamidophenol

  • chloropromazine hydrochloride


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279.

The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The pKa value of aspirin is 3.5. Aspirin will be

  • completely ionised in the small intestine and in the stomach

  • unionised in the small intestine and in the stomach

  • ionised in the small intestine and almost unionised in the stomach

  • ionised in the stomach and almost unionised in the small intestine


D.

ionised in the stomach and almost unionised in the small intestine

Aspirin is a moderate acid (pKa = 3.5), hence is almost unionised in stomach due to strong acidic medium of it (because of HCl). It is due to common ion effect. While in small intestine, the medium is alkaline, hence aspirin will be sufficiently ionised in small intestine.


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280.

2-acetoxy benzoic acid is used as an

  • antimalarial

  • antidepressant

  • antiseptic

  • antipyretic


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