1.

A reddish brown sol ("containing" Fe^(3+)) is obtained by:

Answer»

the addition of small amount of `FeCl_(3)` solution to FRESHLY prepared `Fe(OH)_(3)` precipitate
the addition of `Fe(OH)_(3)` to freshly prepared `FeCl_(3)` solution
the addition of `NH_(4)OH` to `FeCl_(3)` solution dropwise
the addition of `NaOH to `FeCl_(3)` solution dropwise

Solution :Reddish BROWN sol is prepared by adding `FeCl_(3)` in `Fe(OH)_(3)` precipitate.


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