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प्रश्न
Write a balanced chemical equation for each of the following reactions :
Action of dilute sulphuric acid on sodium hydroxide.
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उत्तर
NaOH + H2SO4 →NaHSO4 + H2O
NaHSO4 + H2SO4 → Na2SO4 + H2O
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संबंधित प्रश्न
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Ferrous sulphate solution and ferric sulphate solution. (Using sodium hydroxide solution)
Complete the following equations :
C + cons. H2SO4
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Sulphur trioxide to oleum.
How will you distinguish between conc. HCl and conc. H2SO4?
In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used ?
Making use only of substances chosen from those given below:
Dilute sulphuric acid
Sodium carbonate
Zinc
Sodium sulphite
Lead
Salcium carbonate
Give the equation for the reaction by which you could obtain:
(i) Hydrogen
(ii) Sulphur dioxide
(iii) Carbon dioxide
(iv) Zinc Carbonate (two steps required).
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reactions (i) to (v). Some properties may be repeated:
- Typical acid
- Dehydrating agent
- Non-volatile acid
- Oxidizing agent
- \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
- \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
- \[\ce{NaCl + H2SO4 -> NaHSO4 + HCl}\]
- \[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
- \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Sulphite/hydrogen sulphite + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
