Question

Explain why the lightbulb lights up in the solution containing NaCl but not

in the solution containing sugar

Answer 1

Step-by-step explanation:

Strong electrolytes are those solutions which undergo complete dissociation when dissolved in water. The dissociation of strong electrolytes is given by a right arrow.

NaCl being an ionic compound dissociate in water to give sodium and chloride ions which help in conduction of electricity.

`NaCl(aq)\rightarrow Na^+(aq)+Cl^-(aq)`

Whereas sugar being a covalent compound, do not dissociate into ions when dissolved in water and thus cannot conduct electricity.