Question

What is the negative terminal of a dry cell made up of
A. Carbon rod
B. Zinc plate
C. Magnesium plate
D. Cadmium rod

Answer 1

In order to answer the question, we will use the knowledge of the electrochemical cell that is dry cell as mentioned in the question . A dry cell has two negative terminal and positive terminal and we have to answer that the negative terminal of the cell is made of which material out of the options given in the question.

Complete step by step solution:
A battery is a device which is used to store the energy in the form of chemical energy and then it converts it into the electrical energy for battery used in the dry cell it has two terminal positive terminal and a negative terminal and there is a chemical solution known as electrolyte which surrounds the anode and the cathode.electrode is made with the metal which is good conductor of heat and electricity and in the process of conversion of energy an electron is transferred from a negative terminal to positive terminal but the current flows from positive terminal to the negative terminal
anode is known as the negative terminal of dry cell oxidation of the metal take place at the anode and anode attracts the negatively charged ions towards itself and it takes their extra electron so as to neutralize or oxidise them to cations
The negative terminal that is anode it is made of zinc plates
Typical example of a dry cell is zinc-carbon batteries
Hence, the correct option is b) zinc plate

Note: Many of the people may confuse between carbon rod and zinc plate but to clear so cathode that is the positive terminal of a dry cell made up carbon rods while the negative terminal of a dry cell made up zinc rods hence these two together forms the a common dry cell that is zinc-carbon batteries .