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Which of the following is formed when pi...

Which of the following is formed when picric acid is reduced with sodium sulphide?

A

B

C

D

Text Solution

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The correct Answer is:
C
By means of aqueous ethanolic ammonium hydrogen sulphide, aqueous sodium sulphide, methanolic sodium hydrogen sulphide or stannous chloride in hydrochloride acid, nitro group in a polynitro compound can be reduced one at a time. Thus `2-`amino`-4,6-`dinitrophenol (picramic acid) is fromed when picric acid is reduced with sodium sulphide:
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