Question

Electrochemical Techniques:

( _ ) An electrochemical cell is constructed of

( _ ) A potentiometric cell is constructed of

( _ ) The working electrode measures ( _ )  The counter electrode measure ( _ ) Cyclic voltammetry provides information on ( _ ) Potentiometry provides information on A. counter and reference electrodes B. working and counter electrodes C. working, counter and reference electrodes D. working and reference electrodes E. the current F. the potential G. the kinetics of the reaction only H. the thermodynamics of the reaction only I. both thermodynamics and kinetics of the reaction only

Answer 1

Electrochemical Techniques:-

(1) Since, an electrochemical cell is constructed of working electrode, counter electrode and reference electrodes because it is a three electrodes system. So, the correct option will be (C) working, counter and reference electrodes.

(2) Since, a potentiometric cell is constructed of working electrode and reference electrode because it is a two electrode system. So, the correct option will be (D) working and reference electrodes.

(3) Since, The working electrode measures the current on applying the potential. So, the correct option will be (E) the current.

(4) Since, The counter electrode measure the potential on applying the current. So, the correct option will be (F) the potential.

(5) Since, Cyclic voltammetry provides the information on both thermodynamics as well as kinetics of the reactions. (I) both thermodynamics and kinetics of the reaction only.

(6) Since, Potentiometry provides information on the kinetics of the reaction only. So, the correct option will be (G) the kinetics of the reaction only.