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:

Question

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.

Answer 1

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?

Answer 2

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

Answer 3

its 4