Question:
The aqueous solution of sugar does not conduct electricity. However, when sodium chloride is added to water, it conducts electricity. How will you explain this statement on the basis of ionization and how is it affected by the concentration of sodium chloride?
Solution:
The aqueous solution of sugar does not conduct electricity because they exist as a molecule in water. They don’t have free ions to conduct electricity but in the case of
NaCl, free ions of Na+ and Cl- are present to conduct electricity. Conductance depends on the no. of ions present in the solution. More will the no. of ions of NaCl in water
more will be the conductivity.