Question

Which of the following is false regarding galvanic cells?

(a) It converts chemical energy into electrical energy

(b) The electrolytes taken in the two beakers are different

(c) The reactions taking place are non-spontaneous

(d) To set up this cell, a salt bridge is used

The question was posed to me in an interview for job.

I need to ask this question from Electrochemistry topic in section Electrochemistry of Chemistry – Class 12

Answer 1

Right option is (c) The reactions taking place are non-spontaneous

For explanation I would say: Galvanic cells are used to convert chemical energy into electrical energy. Two electrodes are usually set up in two separate beakers. The electrolytes taken in the two beakers are different. Galvanic cells are based upon spontaneous redox reactions. A salt bridge is used to set up this cell.