1.

Fe(OH)_(3) can be separated from Al(OH)_(3) by the addition of :

Answer»

NaOH solution
dil. HCL solution
NaCl solution
NaOH & `NH_(4)CL` solution

Solution :`Al(OH)_(3)` dissolves in NaOH while the BROWN precipitate of `Fe(OH)_(3)` does not dissolve.
`Al (OH)_(3) + NaOH RARR underset("Soluble COMPLEX")( Na[Al(OH)_(4)])`


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