COMEDK · Chemistry · 33. Practical Chemistry
In the detection of III group basic radicals \(\mathrm{NH}_{4} \mathrm{OH}\) is added after \(\mathrm{NH}_{4} \mathrm{Cl}\) to
- A increase in the ionisation of \(\mathrm{NH}_{4} \mathrm{OH}\)
- B increase in the ionisation of salt solution
- C decrease in the jonisation of salt solution
- D decrease in the ionisation of \(\mathrm{NH}_{4} \mathrm{OH}\)
Answer & Solution
Correct Answer
(D) decrease in the ionisation of \(\mathrm{NH}_{4} \mathrm{OH}\)
Step-by-step Solution
Detailed explanation
In the detection of III group, basic radicals \(\mathrm{NH}_{4} \mathrm{OH}\) is added after \(\mathrm{NH}_{4} \mathrm{Cl}\) to decrease the ionisation of \(\mathrm{NH}_{4} \mathrm{OII}\) due to common ion effect.
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