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Liebermann's nitroso reaction the change in color of phenol occurs as
(Brown or red )-greenish-Red -deep blue
Red -deep blue-Green
Red Green white
white Red Green
 
Show reaction also
 

Asked by Akhandpratapsingh1999 6th April 2017, 10:31 AM
Answered by Expert
Answer:
When phenol is reacted with NaNO2 and concentrated H2SO4, it provides a deep green or blue colour which changes to red on dilution with water. Generated substance in presence of NaOH / KOH restores original green or blue colour. This reaction is termed as Liebermann's nitroso reaction.
 
Answered by Expert 6th April 2017, 7:03 PM
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