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Questions asked by users might not always be phrased in the clearest way.
The number of moles of SO2Cl2 used can be calculated as follows:
16 moles of NaOH are required for complete neutralization
The reaction between SO2Cl2 and water is:
SO2Cl2 + 2H2O → H2SO4 + 2HCl
From the stoichiometry of the reaction, we can see that 1 mole of SO2Cl2 reacts with 2 moles of NaOH
Therefore, 16 moles of NaOH will react with 8 moles of SO2Cl2
Hence, the number of moles of SO2Cl2 used is 8
The correct answer is (B) 8