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SO 2 Cl 2 on reaction with excess of water results into acidic mixture SO 2 Cl 2 + 2 H 2 O → H 2 SO 4 + 2 HCl 16 moles of NaOH is required for the complete neutralisation of the resultant acidic mixture. The number of moles of SO 2 Cl 2 used is

Options

  1. A16
  2. B8
  3. C4
  4. D2

Correct answer

C. 4

Step-by-step solution

SO 2 Cl 2 + 2 H 2 O → 2 HCl + H 2 SO 4 Let x moles of SO 2 Cl 2 are required, ∴   n H 2 SO 4 = x , n HCl = 2 x ⇒ n H + = 4 x Moles of H + formed = 4 x Moles of OH - from 16 moles of NaOH = 16 4 x = 16 (for complete neutralisation) x = 4

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