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Question
What property of conc. H2SO4 is used in the action when sugar turns black in its presence?
Chemical Equations/Structures
One Line Answer
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Solution
H2SO4 is a dehydrating agent.
\[\ce{\underset{sulphide}{\underset{Sodium}{Na2S}} + \underset{sulphuric acid}{\underset{Dilute}{H2SO4}} -> \underset{sulphide}{\underset{Hydrogen}{H2S}} + \underset{sulphate}{\underset{Sodium}{Na2SO4}}}\]
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