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प्रश्न
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
उत्तर
- The preparation of dilute sulphuric acid falls into the category of an extreme exothermic process.
- During the preparation of dilute sulphuric acid, a large amount of water is taken into a glass container that is surrounded by ice. Cool it for twenty minutes. Now a small quantity of conc. H2SO4 is added slowly with stirring. Therefore, only a small amount of heat is liberated at a time. In this way, dilute sulphuric acid is prepared.
- On the other hand, in the process of dilution or conc. sulphuric acid with water, a very large amount of heat is liberated. As a result, water gets evaported instantaneously if it is poured into conc. H2SO4, which may cause an accident.
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Give scientific reasons.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reasons.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is slowly added to water with constant stirring.
Give a scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
