Qualitative Analysis - Result Question 44
####47. Addition of ammonium chloride to a solution containing ferric and magnesium ions is essential for selective precipitation of ferric hydroxide by aqueous ammonia.
$(1985,1 / 2 M)$
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Answer:
Correct Answer: 47. True
Solution:
- In absence of $NH _4 Cl$, both $Fe(OH) _3$ and $Mg(OH) _2$ will be precipitated.
