What is the importance of NH4Cl in the precipitation of hydroxides of group IIIA cations is to?

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Render the solution of weekly basic

Increase the dissociation of NH4OH

Increase the chloride ions

Reduce the dissociation of NH4OH by the common ion effect.

answer is D.

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Detailed Solution

Due to common of NH4+, the dissociation of NH4OH is reduced. So, the other group cautions cannot precipitate.

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