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प्रश्न
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
पर्याय
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
Identify the acid in the following case:
The acid which produces sugar charcoal from sugar.
Give two balanced reactions of the type to show the following property of sulphuric acid:
Acidic nature
Name the following:
Products obtained by treating zinc with dilute sulphuric acid.
Give reason for the following:
When carbon is heated with concentrated sulphuric acid, carbon dioxide is formed.
Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
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.
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid (using lead nitrate solution).
