Which of the following is an adsorbent used for the removal of SO2 from gas/air

Question

Which of the following is an adsorbent used for the removal of SO2 from gas/air ?

Options:

A . Bog iron

B . Limestone powder or alkalised alumina

C . Silica gel

D . Active carbon

Answer: Option B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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