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AP EAMCET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following is formed when SO3 is absorbed by concentrated H2SO4

  1. A H2S2O8
  2. B H2S2O3
  3. C H2S2O7
  4. D H2S2O5
Verified Solution

Answer & Solution

Correct Answer

(C) H2S2O7

Step-by-step Solution

Detailed explanation

Sulphuric acid is manufactured by the Contact Process which involves three steps: (i) burning of sulphur or sulphide ores in air to generate SO2 . (ii) conversion of SO2 to SO3 by the reaction with oxygen in the presence of a catalyst (V2O5 ), and (iii)…
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