1.

Fe(OH)_3 can be separated from Al(OH)_3 by the addition of

Answer»

Dil.HCl
NaCl solution
NaOH solution
`NH_(4)Cl`+NHOH

Solution :NaOH DISSOLVES `Al(OH)_(3)` ppt. forming `NaAlO_2` LEAVING behind `Fe(OH)_(3)` as residue.
`Al(OH)_(3)(s)+NaOH (aq) toNaAlO_(2) (aq)+2H_(2)O(l)`


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