Published by:
CGP EDU Academic Team
Published on: August 14, 2026
To avoid the precipitation of Hydroxides of Zn 2+ , Mn 2+ and Ni 2+ along with those of Fe 3+ , Al 3+ and Cr 3+ the third group solution should be :
Text Solution
Verified by ExpertsThe correct answer is:
B
Due to common ion effect NH 4 Cl will decreases the concentration of OH – in the solution & only Fe 3+ , Al 3+ and Cr 3+ will be precipitated due to low K sp .
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