Question

To coagulate gelatin sol which of the following is most effective -NaCl ,Na3PO4,AlCl3,alcohol

Answer 1

Answer:

To coagulate gelatin solution the compound needed is aluminium chloride (AlCl3).

Explanation:

To coagulate gelatin solution the compound needed is aluminium chloride (AlCl3).

This is because to coagulate a negatively charged compound or molecule a highly charged compound is needed.

Gelatin is a negatively charged compound and to coagulate it a highly charged aluminium chloride  ( AlCl3) is necessary.