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2. Electrochemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry2. Electrochemistry1 Mark
MCQ
Electrolytes when dissolved in water dissociates into ions because
  • A
    They are unstable
  • B
    The water dissolves it
  • C
    The force of repulsion increases
  • ✓
    The forces of electrostatic attraction are broken down by water
✓

Answer

Correct option: D.
The forces of electrostatic attraction are broken down by water
d
Electrolytes when dissolved in water dissociates completely or partially to form ions. Example $NaCl$ when dissolved in water dissociates to $Na ^{+}$ and $Cl ^{-}$ ions. Thus $NaCl$ is a good electrolyte.

Electrolytes when dissolved in water can conduct electricity. Because positive and negative ions are present in the solution because of the dissociation of the electrolytes in the solution.

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