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AIIMS 2006
Exam
AIIMS
Year
2006
Subject
Chemistry
Chapter
Ionic Equilibrium

AIIMS 2006 · Chemistry · Ionic Equilibrium

Assertion : Sb_2 ~S_3 is not soluble in yellow ammonium sulphide....

Assertion : Sb2 S3\mathrm{Sb}_2 \mathrm{~S}_3 is not soluble in yellow ammonium sulphide. Reason : The common ion effect due to S2−\mathrm{S}^{2-} ions reduces the solubility of Sb2 S3\mathrm{Sb}_2 \mathrm{~S}_3.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of the assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of the assertion
  3. CIf assertion is true, but reason is false
  4. DBoth assertion and reason are false statements.

Correct answer

D. Both assertion and reason are false statements.

Step-by-step solution

\mathrm{Sb}_2 \mathrm{ S}_3issolubleinyellowammoniumsulphide.is soluble in yellow ammonium sulphide.\mathrm{Sb}_{2} \mathrm{ S}_{3}+3 \left(\mathrm{NH}_{4}\right)_2 \mathrm{ S} \rightarrow2\left(\mathrm{NH}_{4}\right)_3 SbS3\mathrm{SbS}_{3} The stability of sulphides increases with increase in atomic number of the element.
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