Why must the impurity of arsenic oxide be removed before passing the mixture of SO 4 and air through the catalytic chamber?
Why must the impurity of arsenic oxide be removed before passing the mixture of SO4 and air through the catalytic chamber?
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Impurity of ARSENIC poisons the catalyst [i.e. deactivates the catalyst]. So, it must be removed before passing the mixture of SO2 air through the catalytic chamber.
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