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प्रश्न
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
उत्तर
Sulphuric acid is a strong oxidising agent. When it is added to carbon it oxidises carbon and the evolution of colourless gas are observed. This gas is carbon dioxide along with sulphur dioxide gas. The reaction is given as:
\[\ce{C + 2H2SO4 -> CO2↑ + 2H2O + 2SO2↑}\]
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संबंधित प्रश्न
Give reason for the following:
Red brown vapours are produced when concentrated sulphuric acid is added to hydrogen bromide.
Complete the following equations :
C + cons. H2SO4
What would you observe in the following case?
Sulphur trioxide is dissolved in water on a large scale.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
How are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
How are the following conversion brought about? Give equation and condition:
Aqueous barium chloride to barium sulphate.
Choose the current answer from the options given below :
Which of the following gas dissolves in H2SO4 to give alum?
Fill in the blank with appropriate word/words :
For the reaction SO2 + O2⇌ SO3 + Heat, the favourable conditions are _________ and __________.
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).
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
\[\ce{NaOH}\]
