Chemical Effects of Electric Current — Science STD 8 — Question
Gujarat BoardEnglish MediumSTD 8ScienceChemical Effects of Electric Current2 Marks
Question
Solid salt $(\text{NaCl})$ does not conduct electricity but when dissolved in water, it conducts electricity.
✓
Answer
$-$Solid salt consists of positive and negative ions that cannot move.
$-$However, when solid salt is dissolved in water, positive sodium ions and negative chlorine ions separate out and move easily in the solution.
$-$The electric current in the solution flows due to these ions.
$-$Thus, solution conducts electricity.
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