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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. - Science and Technology 1

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Short Note

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.

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Solution

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring because sulphuric acid (H2SO4) reacts very vigorously with water, it is a highly exothermic reaction. If you add water to concentrated sulphuric acid, it can boil and bump out due to which you may get a nasty acid burn.Water is a good absorber of heat, so we add acid to the water, slowly and with constant stirring.

Concept: Energy Change in Chemical Reactions
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Balbharati Science and Technology Part 1 10th Standard SSC Maharashtra State Board
Chapter 3 Chemical reactions and equations
Q 4.3 | Page 45
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