A) \[Zn{{\left( OH \right)}_{2}}\] and \[Ni{{\left( OH \right)}_{2}}\]
B) \[Al{{\left( OH \right)}_{3}}\] and \[Fe{{\left( OH \right)}_{3}}\]
C) \[Zn{{\left( OH \right)}_{2}}\] and \[Al{{\left( OH \right)}_{3}}\]
D) \[Ni{{\left( OH \right)}_{2}}\] and \[Fe{{\left( OH \right)}_{3}}\]
Correct Answer: B
Solution :
As the concentration of \[O{{H}^{-}}\]ions is less due to common ion effect but enough to precipitate the IIIrd group radicals as hydroxides, as the solubility product of III group hydroxides is lower than IV, V and VI group hydroxides.You need to login to perform this action.
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