1.

Impurity along SO_(2) is ____and it is removed by

Answer»

`As_2O_3 , Fe_(2)O_(3), xH_2O`
`H_2S, AL(OH)_(3)`
`H_2S, Fe_(2)O_(3), xH_(2)O`
`AS_(2)O_(3), Al_(2)O, xH_2O`

Answer :A


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