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Chemistry in Everyday Life — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryChemistry in Everyday Life3 Marks
Question
Define the following terms with a suitable example in each:
  1. Antibiotics
  2. Artificial sweeteners
  3. Analgesics
✓

Answer

  1. 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 Penicillin.
  2. Chemicals which are sweet in taste and with low calories, eg. Saccharin.
  3. Analgesics reduce or abolish pain without causing impairment of consciousness, mental confusion, incoordination or paralysis or some other disturbances of nervous system Aspirin.

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