SO2 → Н2SO3 → Al2(SO3)3 → Al(OH)3

Question

SO2 → Н2SO3 → Al2(SO3)3 → Al(OH)3

Answer 1

SO2+H2O → H2SO3

3 H2SO3 + Al2O3 → 3 H2O + Al2(SO3)3

Al2(SO3)3 + 6 NaOH → 2 Al(OH)3 + 3 Na2SO3