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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» 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 |
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