Question

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

• A. Electrons flow from copper electrode to zinc electrode
• B. Current flows from zinc electrode to copper electrode
• C. Cations move toward copper electrode
• D. Cations move toward zinc electrode

Answer 1

Answer: (C)

Cations move toward copper electrode

Answer 2

In Daniell cell, following reaction occurs. $Zn + Cu ^{2+} \longrightarrow Zn ^{2+}+ Cu$ At cathode $Cu ^{2+}+2 e^{-} \longrightarrow Cu$ At anode $Zn \longrightarrow Zn ^{2+}+2 e^{-}$ $\therefore$ Electrons moves from anode $( Zn )$ to cathode (Cu) and electricity flows from Cu to $Zn$. Here, cations move towards cathode copper electrode.