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Questions
State one appropriate observation of the following:
Dehydration of concentrated sulphuric acid with sugar crystals.
Give a balanced equation for the dehydration of concentrated sulphuric acid with sugar crystals.
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Solution
\[\ce{C12H22O11 ->[Conc. H2SO4] 12C + 11H2O}\]
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RELATED QUESTIONS
A, B, C, and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non volatile acid
C = Oxidizing agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following
1) Preparation of Hydrogen chloride gas
2) Preparation of Copper sulphate from copper oxide.
3) An action of conc. Sulphuric acid on Sulphur.
Distinguish between the given pairs of compounds using the test given within brackets:
Dilute sulphuric acid and dilute hydrochloric acid (using barium chloride solution)
Name the products formed when hot and concentrated sulphuric acid reacts with Sugar.
Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.
What would you observe in the following case:
Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.
Give a balanced chemical equation for the action of sulphuric acid on the following:
Potassium hydrogen carbonate
Write balanced chemical equation to show :
The behavior of H2SO4 as an acid when it reacts with magnesium.
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
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. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
