Write an activity to known whether the acid is strong or weak

CBSE Class 10 CBSE Class 10 Science
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  1. Take dilute HCl in a beaker.
  2. Close it with a cardboard and introduce two different colour electrical wires through the holes made on it.
  3. Connect a bulb and make the connection as shown in the figure.
  4. Do the same replacing dilute HCl with dilute CH_{3}COOH (acetic acid). Observation :
    The bulb glows brightly in HCl solution, while the bulb intensity is low in acetic acid solution.

    Result:
    More ions are present in HCl solution which is a strong acid than in CH_{3}COOH solution which is a weak acid.