1.

Statement-1: The cell constant of a conductivity cell depends upon the nature of the material of the electrodes. Statement-2: The electrodes of the cell are coated with platinum black to avoid polarisation effects.

Answer»

Statement-1 is TRUE, statement-2 is true, statement-2 is a correct explanation of statement-1
Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation of statement-1.
Statement-1 is true, statemet-2 is false
Statement-1 is false, statement-2 is true

Solution :Correct Statement-1. the CELL constant of a conductivity cell depends upon the distance between the electrodes and the area of their cross-section and not on the material of the electrodes.


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