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Stelco has been recently legislated to reduce total SO2 emissions from iron smelting operations. Select the most effective chemical reagent to desulfurize Stelco’s gas emissions as a strategy to minimize the environmental impact of acid rain in eastern Canada:

1. NaCl
2. CO2
3. NaClO
4. NaOH
5. HCl

desulfurize would be to remove sulfur. how would i go solving this question? do i write chemical equations?

i just need to be pointed in the right direction please.

  • chemistry -

    i can narrow it down to 3 and 4 because it would have to form an adduct with the SO2. but how can i solve between 3 and 4?

  • chemistry -

    please do not post questions that involve quiz questions from mc master univeristy

  • chemistry -

    its 4

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