which process uses galvanic cell? A. lead storage B. refining of petroleum C. electrolysis of fused sodium chloride D. hall's process of production of aluminium

answer : A

A battery (storage cell) is a galvanic cell (or a series of galvanic cells ) that contains all the reactants needed to produce electricity.

I agree with A as the answer.

lead storage(A)

The process that uses a galvanic cell is option D: Hall's process of production of aluminium.

To understand why this process uses a galvanic cell, let's go through the options one by one:

A. Lead storage: Lead storage doesn't involve the use of a galvanic cell. It typically involves the use of lead-acid batteries for storing electrical energy.

B. Refining of petroleum: The refining of petroleum is a process that involves fractional distillation and other chemical processes, but it doesn't rely on a galvanic cell.

C. Electrolysis of fused sodium chloride: This process, also known as the Downs cell, does indeed involve a galvanic cell. It is used to produce sodium metal and chlorine gas using molten sodium chloride as the electrolyte. However, this option is not mentioned in the given choices.

D. Hall's process of production of aluminium: The Hall's process of production of aluminium does use a galvanic cell. It is a method used to extract aluminum from alumina (aluminum oxide) through the electrolysis of molten cryolite (sodium aluminum fluoride). The galvanic cell provides the necessary electricity to drive the electrolysis process, allowing the extraction of aluminum.

Therefore, the correct answer is option D: Hall's process of production of aluminium.