Current in an electrolyte is carried by: - Vidyadip

MCQ

Current in an electrolyte is carried by:

A
Only electrons.
B
Only $- ve$ ions.
C
Only $+ ve$ ions.
✓
Both $+ ve$ and $- ve$ ions.

✓

Answer

Correct option: D.

Both $+ ve$ and $- ve$ ions.

In electrolytes, the charge carriers are ions, atoms that have gained electrons so they are negatively charged are called anions, atoms that have lost electrons so they are positively charged are called cations. Thus, ions are charged particles $($e.g.$ Na^+$ sodium ion or $Cl^-$ chloride ion in $\text{NaCl}$ solution$)$ and their movement or flow constitutes an electric current, i.e. the electrolyte consists of a stream of moving charged particles.

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