JEE Mains · Chemistry · STD 12 - p -Block elements - ll
Consider the sulphides \(\mathrm{HgS}, \mathrm{PbS}, \mathrm{CuS}, \mathrm{Sb}_{2} \mathrm{~S}_{3}\), \(\mathrm{As}_{2} \mathrm{~S}_{3}\) and \(\mathrm{CdS}\). Number of these sulphides soluble in \(50\, \% \,\mathrm{HNO}_{3}\) is .... .
- A \(3\)
- B \(1\)
- C \(2\)
- D \(4\)
Answer & Solution
Correct Answer
(D) \(4\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Pbs}, \mathrm{CuS}, \mathrm{As}_{2} \mathrm{~S}_{3}, \mathrm{CdS}\) are soluble in \(50\, \% \,\mathrm{HNO}_{3}\) \(\mathrm{HgS}, \mathrm{Sb}_{2} \mathrm{~S}_{3}\) are insoluble in \(50\, \%\, \mathrm{HNO}_{3}\) So Answer is \(4 .\)
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