KCET · Chemistry · d and f Block Elements
In the analysis of III group basic radicals of salts, the purpose of adding \(\mathrm{NH}_4 \mathrm{Cl}(s)\) to \(\mathrm{NH}_4 \mathrm{OH}\) is
- A to increase the concentration of \(\mathrm{OH}^{-}\)ions
- B to precipitate the radicals of group IV and V
- C to suppress the dissociation of \(\mathrm{NH}_4 \mathrm{OH}\)
- D to introduce \(\mathrm{Cl}^{-}\)ions
Answer & Solution
Correct Answer
(C) to suppress the dissociation of \(\mathrm{NH}_4 \mathrm{OH}\)
Step-by-step Solution
Detailed explanation
In the analysis of III group basic radicals of salts, the purpose of adding \(\mathrm{NH}_4 \mathrm{Cl}(s)\) to \(\mathrm{NH}_4 \mathrm{OH}\) is, to suppress the dissociation of \(\mathrm{NH}_4 \mathrm{OH}\) due to the common ion effect.
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