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In contact process, arsenic impurity has to be removed before proceeding.

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in Chemistry – Class 12 by (188k points)
In contact process, arsenic impurity has to be removed before proceeding.

(a) True

(b) False

This question was addressed to me during an interview for a job.

My doubt stems from P-Block Elements topic in portion P-Block Elements of Chemistry – Class 12

1 Answer

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The correct option is (a) True

Best explanation: Sulphur dioxide is purified by removing dust and arsenic impurities. Arsenic is a catalyst poison for vanadium pentoxide catalyst. Hence, it has to be removed completely before entering into the catalytic chamber.

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