Question

which of the following electrolytes is found in its cation form?
a. chloride
b. bicarbonate
c. sodium
d. sulfate

Explanation:

To determine which electrolyte is in cation form, we recall: Cations are positively charged ions, anions are negatively charged. Chloride ($\text{Cl}^-$), bicarbonate ($\text{HCO}_3^-$), and sulfate ($\text{SO}_4^{2-}$) are anions (negative charge). Sodium ($\text{Na}^+$) is a cation (positive charge).

Answer:

c. Sodium