MCQ
While testing the sulphur in organic compounds the violet colour forms due to :
  • A
    Formation of $Na _4\left[ Fe ( CN )_6\right]$
  • B
    Formation of $Na _3\left[ Fe ( CN )_6\right]$
  • Formation of $Na _4\left[ Fe ( CN )_5 NOS \right]$
  • D
    Formation of $K _3\left[ Fe ( CN )_5 NOS \right]$

Answer

Correct option: C.
Formation of $Na _4\left[ Fe ( CN )_5 NOS \right]$
C

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