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Why the Impurity of Arsenic Oxide Must Be Removed before Passing the Mixture of So4 and Air Through the Catalytic Chamber? - Chemistry

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Short Note

Why the impurity of arsenic oxide must be removed before passing the mixture of SO2 and air through the catalytic chamber?

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Solution

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.

Concept: Manufacture of Sulphuric Acid (Constant Process)
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APPEARS IN

Selina Concise Chemistry Class 10 ICSE
Chapter 11 Sulphuric Acid
Intext Questions | Q 3 | Page 175
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