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प्रश्न
State your observations when Concentrated Sulphuric acid is added to Sugar Crystals
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उत्तर
When sugar reacts with conc. H2SO4, it gives a black spongy mass of carbon which is called sugar charcoal.
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संबंधित प्रश्न
Write balanced chemical equations to show how SO3 is converted to Sulphuric acid in the contact process.
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
Name the following:
The precipitate obtained by treating carbon with hot concentrated sulphuric acid.
Give reason for the following:
Ammonia gas cannot be dried by passing through concentrated sulphuric acid.
Give examples of the use of sulphuric acid as
An oxidizing agent
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 : Hydrogen
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate
- Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
- In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.
- What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
- Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.
