Question

Which of the following statements is true for the electrochemical Daniel cell?

• A. Electrons flows from copper electrode to zinc electrode
• B. Currents flows from zinc electrode to copper electrode
• C. Cations moves towards copper electrode
• D. Cations moves towards zinc electrode

Answer 1

Answer: (C)

In Daniel cell, following reaction occurs.

$Zn+C{u}^{2+}\to Z{n}^{2+}+Cu$

At cathode $;C{u}^{2+}+2e^{-}\to Cu$

At anode ; $Zn\to Z{n}^{2+}+2e^{-}$

Electrons move from anode (Zn) to cathode (Cu) and electricity flows from Cu to Zn. Here, cations moves towards cathode conner electrode