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Question
Describe the reaction that show
Concentrated sulphuric acid is a dehydrating agent.
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Solution
Concentrated sulphuric acid as dehydrating agent as it removes water of crystallization of hydrated salts and renders them anhydrous.
\[\ce{CuSO4.5H2O ->[H2SO4] CuSO4 + 5H2O}\]
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RELATED QUESTIONS
Give balanced chemical equations for the action of sulphuric acid on the following:
Sulphur
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
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Dilute sulphuric acid to hydrogen.
Describe the reaction that show
Dilute sulphuric acid behaves as dibasic 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 |
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(ii) Lead sulphate using dilute sulphuric acid.
Write the equation of the following reaction:
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(ii) carbon
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\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
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