<prompt> Boemo ba oxidation ea sebabole ka sulphurous acid ke bofe?nan  <response>: Instruction in English: What is the oxidation state of sulfur in sulfurous acid? . Response in English: The oxidation state of sulfur in sulfurous acid H2SO3 is 4. . Response in Sesotho: Boemo ba oxidation ea sebabole ka sulphurous acid H2SO3 ke 4. 