Advertisements
Advertisements
Question
How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.
Advertisements
Solution
Sucrose to sugar charcoal :
Carbohydrates contain carbon, hydrogen and oxygen. Thus sulphuric acid removes hydrogen and oxygen in form of water leaving behind carbon.
\[\ce{C12H22O11 ->[Conc. H2SO4] 12C + 11H2O}\]
APPEARS IN
RELATED QUESTIONS
Write a balanced chemical equation for the following:
Action of concentrated sulphuric acid on Sulphur.
Give two balanced reactions of the type to show the following property of sulphuric acid:
Oxidising agent
Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.
Copy and complete the following table.
Column 3 has the names of gases to be prepared using the substance you enter in column 1, along with dilute or concentrated sulphuric acid, as indicated in column 2.
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated sulphuric acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
Write the equation for the laboratory preparation of :
(i) Sodium sulphate using dilute sulphuric acid.
(ii) Lead sulphate using dilute sulphuric acid.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Copper sulphate from copper.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.
What would you observe in the following case:
Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.
Distinguish between the following pair of compounds using the test given with brackets:
Dilute sulphuric acid and dilute hydrochloric acid (using barium chloride solution)
Give two balanced reactions of the type to show the following property of sulphuric acid:
Dehydrating nature
