Question

On which of the following properties does coagulating power of an ion depend ? 

(1) The magnitude of the charge on the alone 

(2) Size of the ion alone 

(3) Both magnitude and sign of the charge the ion 

(4) The sign of charge on the ion alone

Answer 1

(3) According to Hardy Schulze rule : The coagulating power of an ion depend on both magnitude and sign of the charge of the ion.