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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Chemistry
Chapter
Practical Chemistry

BITSAT 2010 · Chemistry · Practical Chemistry

When H_ 2 S gas is passed through the HCl containing aqueous...

When H2S\mathrm{H}_{2} \mathrm{ S} gas is passed through the HCl\mathrm{HCl} containing aqueous solution of CuCl2,HgCl2\mathrm{CuCl}_{2}, \mathrm{HgCl}_{2}, BiCl3\mathrm{BiCl}_{3} and CoCl2\mathrm{CoCl}_{2} it does not precipitate out

Options

  1. ACuS\mathrm{CuS}
  2. BHgS\mathrm{HgS}
  3. CBi2S3\mathrm{Bi}_{2} \mathrm{ S}_{3}
  4. DCoS\mathrm{CoS}

Correct answer

D. CoS\mathrm{CoS}

Step-by-step solution

CoS⁡\operatorname{CoS} is not precipitated in acidic medium.
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