Question

Anode is

A) Positively charged electrode

B) Negatively charged electrode

C) Wire used to connect the electrode

D) Electrolyte which conducts electricity

Answer 1

Hint: A electrode is a conductor that helps in establishing electrical contact with a non-metallic part of the circuit. Electrodes consist of two main points known as cathode and anode which basically describe the direction of flow of current.

Complete step by step solution :

Let us understand what cathode and anode exactly means. They are both defined by the flow of current.

Therefore, a cathode is an electrode from which the current exits a polarized electrical device. Likewise, an anode is an electrode from which a current enters into a polarized electrical device.

In the most basic form, an anode in electrochemistry is the point where an oxidation reaction occurs. Generally, at an anode, negative ions or anions due to its electrical potential tend to react and give off electrons. These electrons then move up and into the driving circuit.

Therefore, Anode is negatively charged electrode. So, option (b) is correct.</b>

Note: While answering these types of questions we generally get confused between the anode and cathode and their meaning and difference. Some key differences of anode and cathode are. Anode is usually positive whereas cathode is negative. Anode acts as an electron donor  whereas cathode acts as an electron acceptor. In galvanic cell anode can become a cathode but in the same galvanic cell cathode cannot become anode. Hence, one should keep all these differences in mind.