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प्रश्न
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).
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उत्तर
(i) Zinc reacts with dilute sulphuric acid to evolve hydrogen.
\[\ce{Zn + H2SO4 → ZnSO4 + H2 ^}\]
(ii) Sodium sulphite reacts with dilute sulphuric acid to give sulphur dioxide.
\[\ce{Na2SO3 + H2SO4 → Na2SO4 + H2O + SO2 ^}\]
(iii) Sodium carbonate reacts with dilute sulphuric acid to give carbon dioxide.
\[\ce{Na2CO3 + H2SO4 → Na2SO4 + H2O + CO2 ^}\]
(iv) Zinc reacts with dilute sulphuric acid to form zinc sulphate, which in reaction with sodium carbonate forms zinc carbonate.
\[\ce{ Zn + H2SO4 → ZnSO4 + H2 ^}\]
\[\ce{ZnSO4 + Na2CO3 → ZnCO3 + Na2SO4}\]
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संबंधित प्रश्न
Comment, sulphuric acid is referred to as oil of vitriol.
What is the name given to the salts of sulphuric acid?
Give reasons for the following:
Sulphuric acid forms two types of salts with NaOH.
Complete the following equations :
C + cons. H2SO4
Give examples of the use of sulphuric acid as
An electrolyte in everyday use
How will you distinguish between conc. HCl and conc. H2SO4?
A, B, C and D summarise the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non-Volatile acid
C = Oxidising agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following :
(i) Preparation of hydrogen chloride gas
(ii) Preparation of copper sulphate from copper oxide
(iii) Action of cone, sulphuric acid on sulphur
Sulphuric acid is manufactured by the contact process.
Name the chemical used to dissolve SO3 and also name the product formed. Give all the main reactions to this process.
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the sugar.
Which property of sulphuric acid accounts for its use as a dehydrating agent?
