Question

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

Explanation:

To determine which electrolyte is in cation form, we recall: Cations are positively charged ions, anions are negatively charged.

• Chloride ($\text{Cl}^-$) is an anion (negative charge).
• Bicarbonate ($\text{HCO}_3^-$) is an anion (negative charge).
• Sodium ($\text{Na}^+$) is a cation (positive charge).
• Sulfate ($\text{SO}_4^{2-}$) is an anion (negative charge).

So sodium is the cation - form electrolyte.

Answer:

c. Sodium