Advertisements
Advertisements
Question
State your observations when Concentrated Sulphuric acid is added to Sugar Crystals
Advertisements
Solution
When sugar reacts with conc. H2SO4, it gives a black spongy mass of carbon which is called sugar charcoal.
APPEARS IN
RELATED QUESTIONS
Identify the acid in the following case:
The acid on mixing with lead nitrate solution produces a white precipitate, which is insoluble even on heating.
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?
Give two balanced reactions of the type to show the following property of sulphuric acid:
Acidic nature
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
Write balanced chemical equation to show :
The oxidizing action of conc.sulphuric acid on carbon
A, B and C are the chemical properties of sulphuric acid:
A. Oxidizing agent
B. Dehydrating agent
C. Non-volatile acid
Match the following equations 1 to 3 to the above chemical properties of sulphuric acid.
1. \[\ce{KNO3 + H2SO4 -> KHSO4 + HNO3}\]
2. \[\ce{C12H22O11 -> 12C + 11H2O}\]
3. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
