NEET Chemistry Surface Chemistry Questions Solved

BOARD

What happens when                                                                                    3mark

(a) a freshly prepared precipitate of Fe(OH)3 is shaken with a small amount of FeCl3 solution ?

(b) persistent dialysis of a colloidal solution is carried out ?

(c) an emulsion is centrifuged ? 

(a)Peptisation occurs / Colloidal solution of Fe(OH)3 is formed                                        1mark

(b)Coagulation occurs                                                                                                  1mark

(c)Demulsification or breaks into constituent liquids                                                       1mark

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