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प्रश्न
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
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उत्तर
When conc. H2SO4 is added to a crystal of hydrated copper sulphate, it removes water of crystallisation from salt.
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संबंधित प्रश्न
How will you distinguish between dilute hydrochloric acid and dilute sulphuric acid using lead nitrate solution?
Give balanced chemical equations for the action of sulphuric acid on the following:
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 following :
The precipitate obtained by treating aqueous lead nitrate with dilute sulphuric acid.
Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.
The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Zinc hydroxide
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. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
