1.0 g of fuming H 2 SO 4 is diluted with water. This solution is completely neutralised…

Chemistry · JEE Main · NTA Exams — General Principles and Processes of Isolation of Elements

1.0 g of fuming H2SO4 is diluted with water.  This solution is completely neutralised by 26 mL of 0.8 N NaOH.  The % of free SO3 in the sample is:
  1. 8.5%
  2. 76%
  3. 50%
  4. 20%

Answer

(D) 20%

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