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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
Question
In an attempt to demonstrate electrical conductivity through an electrolyte, the following apparatus figure, was set up. Which among the following statement(s) is (are) correct?

  1. Bulb will not glow because electrolyte is not acidic.
  2. Bulb will glow because NaOH is a strong base and furnishes ions for conduction.
  3. Bulb will not glow because circuit is incomplete.
  4. Bulb will not glow because it depends upon the type of electrolytic solution.
  1. 1 and 3
  2. 2 and 4
  3. 2 only
  4. 4 only

✓

Answer

  1. 2 only

Explanation: Strong acids or bases are good conductors of electricity because they ionize completely in aqueous solution to give ions.

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