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COMEDK2020Chemistryd and f Block Elements

Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration which confirms the presence of

Options

  1. AS
  2. BN
  3. CN and S
  4. DS and Cl

Correct answer

C. N and S

Step-by-step solution

Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration, which eonfirms the presence of N and S . Na + C + N + S NaCNS (Sodium thiocyanate) Fe ³⁺+3 CNS ⁻ Fe ( CNS )₃ Fes pet.

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