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JIPMER2010ChemistryAmines

Which of the organic compounds will give red colour in Lassaigne test?

Options

  1. AC ₆ H ₅ NH ₂
  2. BNone of these

Correct answer

B. None of these

Step-by-step solution

If both nitrogen and sulphur are present in a organic compound, they will give red blood colour with Lassaigne test due to the formation of ferric thiocyanate. aligned & Na + C + S + N NaSCN & sodium. thiocyanate & Fe ³⁺+3 NaSCN Fe ( SCN )₃+3 Na ⁺ & ferric thiocyanate & (blood red colouration) & aligned

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