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  3. Chemistry
  4. Sodium extract of Lassaigne’s solution is treated with, FeSO4, FeCl3 and dil.H2SO4 to get a blood red colour. Which of the following is probable organic compound?

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Q. Sodium extract of Lassaigne’s solution is treated with, $FeSO_4, FeCl_3$ and $dil.H_2SO_4$ to get a blood red colour. Which of the following is probable organic compound?

Organic Chemistry – Some Basic Principles and Techniques

Solution:

The compound (a) has both nitrogen and sulphur.