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प्रश्न
Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.
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उत्तर
Concentrated sulphuric acid must be stored in air tight bottles as it gains water from air and gets slightly diluted thus resulting in increase in volume.
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संबंधित प्रश्न
What is the name given to the salts of sulphuric acid?
Write a balanced chemical equation for each of the following reactions :
Action of dilute sulphuric acid on zinc sulphide.
Complete the following equations :
S + conc.HNO3 →
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
How will you distinguish between conc. HCl and conc. H2SO4?
Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.
In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used ?
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reaction (a) to (e). Some properties may be repeated.
A. Acid
B. Dehydrating agent
C. Non-volatile acid
D. Oxidizing agent
(a) \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
(b) \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
(c) \[\ce{NaCl + 2H2SO4 -> NaHSO4 + HCl}\]
(d) \[\ce{CuO + 2H2SO4 -> CuSO4 + H2O}\]
(e) \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
Name the following:
A sulphate insoluble in water.
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
