Which of the following has the minimum coagulating power?

According to the Hardy-Schulze rule,the flocculating power of an ion increases with:

When an excess of a very dilute aqueous solution of $KI$ is added to a very dilute aqueous solution of silver nitrate,the colloidal particles of silver iodide are associated with the Helmholtz double layer in the form of:

The size of colloidal particles is . . .

Which colloidal sol is known as 'Aqua-dag'?

Which of the following represents a surfactant molecule?