AP EAMCET · Chemistry · General Organic Chemistry
Which of the products indicates the presence of sulphur atom in an organic compound, in qualitative elemental analysis?
- A \(\mathrm{Fe}_2 \mathrm{SO}_4\)
- B ZnS
- C \(\mathrm{MgS}\)
- D \(\mathrm{PbS}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{PbS}\)
Step-by-step Solution
Detailed explanation
In qualitative elemental analysis of organic compounds (Lassaigne test) sulphur atom of the organic molecule gets converted into water soluble salt \(\mathrm{Na}_2 \mathrm{~S}\). It is tested with lead acetate \(\left(\mathrm{CH}_3 \mathrm{COO}\right)_2 \mathrm{~Pb}\) solution…
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