NEET Exam Model Paper 6

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Question : 63 of 180

Marks: +1, -0

Ferric hydroxide sol (+ vely charged) is prepared by

Treating FeCl3(aq) with excess of NaOH Solution.
Treating FeCl3(aq) with excess NH3(aq)
Adding excess FeCl3 solution to hot water with constant stirring
Treating Fe2O3 with Con.HCl

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