Advertisements
Advertisements
प्रश्न
Name the gas released when sodium carbonate is added to a solution of sulphur dioxide.
Advertisements
उत्तर
Carbon dioxide
APPEARS IN
संबंधित प्रश्न
Write balanced chemical equations to show how SO3 is converted to Sulphuric acid in the contact process.
Give appropriate scientific reasons for The electrical conductivity of acetic acid is less in comparison to the electrical conductivity of dilute sulphuric acid at a given concentration.
Give reason for the following:
When barium chloride is added to dilute sulphuric acid, a white precipitate is formed.
Give reason for the following:
When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.
Choose the current answer from the options given below :
When conc. H2SO4 comes in contact with sugar, it becomes black due to
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.
In the given equation identify the role played by concentrated sulphuric acid S + 2H2SO4→ 3SO2 + 2H2O
Write balanced chemical equation to show :
The oxidizing action of conc.sulphuric acid on carbon
Give two balanced reactions of the type to show the following property of sulphuric acid:
Dehydrating nature
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
