Question

Q.36: Which of the following is not true :

(a) the device which is used to convert chemical

energy into electrical energy and vice versa is called

electrochemical cell.

(b) electrochemical cells are of two types : galvanic

cell and electrolytic cell

(c )In galvanic cell ∆Gis –ve but in electrolytic cell ∆G



is +ve.

(d ) Salt bridge is required in both type of

electrochemical cell

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Answer 1

Answer:

C

Explanation:

in galvanic cell it is a positive electrode, as ions get reduced by taking up electron from the electrode. electrolytic cell the cathode is the negative terminal and attract positive ion

Answer 2

(d) is false, salt bridge is only necessary in Galvanic Cell