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NEETChemistryp Block Elements (Group 15, 16, 17 & 18)

Why is it important to add concentrated sulphuric acid slowly to water when preparing a sulphuric acid solution?

Options

  1. ATo reduce the concentration of the acid
  2. BTo increase the heat evolution
  3. CTo avoid excessive heat and splattering
  4. DTo improve the solubility of sulphuric acid in water

Correct answer

C. To avoid excessive heat and splattering

Step-by-step solution

Adding concentrated sulphuric acid slowly to water helps avoid excessive heat and splattering, as the process is highly exothermic.

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