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प्रश्न
Give reasons for the following:
A piece of wood becomes black when concentrated sulphuric acid is poured on it.
उत्तर
A piece of wood becomes black because carbon is set free when cellulose \[\ce{[C6H10O5]n}\] gets charred by conc. \[\ce{H2SO4}\].
\[\ce{[C6H10O5]n ->[conc. H2SO4] 6[C]n + 5[H2O]n}\]
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संबंधित प्रश्न
Comment, sulphuric acid is referred to as King of chemicals.
What is the name given to the salts of sulphuric acid?
Give reasons for the following:
Sulphuric acid forms two types of salts with \[\ce{NaOH}\].
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.
Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.
Name the following:
A sulphate insoluble in water.
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
Sugar
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
