Chemistry · Group 13 to Group 18 Elements

Identify the equations involved in bleaching action of

Identify the equations involved in bleaching action of \( \boldsymbol{S O}_{2} \)

  • A. \( S O_{2}+H_{2} O \rightarrow H_{2} S O_{3} \)
  • B. \( S O_{2}+O_{2} \rightarrow S O_{3} \)
  • C. \( S O_{2}+2 H_{2} O \rightarrow H_{2} S O_{4}+2[H] \)
  • D. \( S O_{3}+H_{2} O \rightarrow H_{2} S O_{4} \)

Step-by-step solution

Bleaching action of SO2 is due to its reducing property. It reacts with water to produce nascent hydrogen ([H]), which reduces colored compounds to colorless ones. This equation represents that reductive bleaching mechanism.
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