In the Libermann's nitroso reaction, sequential changes in the colour

1.	In the Libermann's nitroso reaction, sequential changes in the colour of phenol occurs as
Answer» Brown or red `rarr` green `rarr` deep BLUE Red `rarr` deep blue `rarr` green Red `rarr` green `rarr` white White `rarr` red `rarr` green Solution :SEE Liberman Nitroso REACTION in PHENOLS.

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