JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
Match List \(I\) with List \(II\)
| List \(I\) Element detected | List \(II\) Reagent used/Product formed |
| \(A\) Nitrogen | \(I.\) \(Na _2\left[ Fe ( CN )_5 NO \right]\) |
| \(B\) Sulphur | \(II.\) \(AgNO _3\) |
| \(C\) Phosphorous | \(III.\) \(Fe _4\left[ Fe ( CN )_6\right]_3\) |
| \(D\) Halogen | \(IV.\) \(\left( NH _4\right)_2 MoO _4\) |
- A \(A-II, B-IV, C-I, D-III\)
- B \(A-IV, B-II, C-I, D-III\)
- C \(A-II, B-I, C-IV, D-III\)
- D \(A-III, B-I, C-IV, D-II\)
Answer & Solution
Correct Answer
(D) \(A-III, B-I, C-IV, D-II\)
Step-by-step Solution
Detailed explanation
Nitrogen detection by lassaigne's method \(Na + C + N \rightarrow NaCN\) \(6 NaCN + FeSO _4 \rightarrow Na _4\left[ Fe ( CN )_6\right]+ Na _2 SO _4\) \(Na _4\left[ Fe ( CN )_6\right]+ Fe ^{3+} \rightarrow Fe _4\left[ Fe ( CN )_6\right]_3\) (Prussian blue) Sulphur detection by…
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