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प्रश्न
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
विकल्प
Sulphur dioxide
Carbon dioxide
Hydrogen sulphide
Nitrogen dioxide
Sulphur trioxide
Vapour of sulphuric acid
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उत्तर
Hydrogen sulphide
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संबंधित प्रश्न
Give one equation to show the following properties of sulphuric acid:
As a non-volatile acid
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?
How will you distinguish between dilute H2SO4 and conc. H2SO4 ?
Name the catalyst used in the process.
A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent
(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.
What would you observe in the following case:
Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.
What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with :
(i) Potassium nitrate
(ii) carbon
Give balanced chemical equation to prepare the following salt:
Lead sulphate from lead carbonate
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with sodium sulphite.
Hydrogen chloride gas is prepared in the laboratory by the action of concentrated sulphuric acid on sodium chloride.
Give a balanced chemical equation for the above reaction.
