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प्रश्न
Choose the current answer from the options given below :
When conc. H2SO4 comes in contact with sugar, it becomes black due to
विकल्प
Hydrolysis
Decolourisation
Dehydration
Hydration
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उत्तर
When conc. H2SO4 comes in contact with sugar, it becomes black due to Dehydration.
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संबंधित प्रश्न
Identify the acid in the following case:
The acid which produces sugar charcoal from sugar.
In the contact process for the manufacture of sulphuric acid give the equations for the conversion of sulphur trioxide to sulphuric acid.
State the inference drawn from the following observations:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
Give reason for the following:
When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.
Give reason for the following:
H2SO4 cannot be prepared by heating sodium sulphate with conc. HCl or HNO3
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Carbon dioxide
What do you see when concentrated sulphuric acid is added to copper sulphate-5-water ( You are not required to say what is happing, nor is it necessary to name the products.)
An acid obtained from concentrated nitric acid on reaction with Sulphur ______.
