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

Cations move towards copper electrode.

The answer is (3) Cations move towards the copper electrode.

In the Daniell cell, the zinc electrode is the anode and the copper electrode is the cathode. The anode is where oxidation takes place and the cathode is where reduction takes place.

At the anode, zinc metal is oxidized to zinc ions. This means that zinc atoms lose electrons and become zinc ions. The electrons that are lost by zinc atoms flow through the external circuit to the cathode.

At the cathode, copper ions are reduced to copper metal. This means that copper ions gain electrons and become copper metal. The electrons that flow from the anode to the cathode are used to reduce copper ions.

The salt bridge in the Daniell cell allows cations to flow from the anode to the cathode. This is because the anode has a positive charge and the cathode has a negative charge. Cations are positively charged ions, so they are attracted to the negative charge of the cathode.