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What is meant by catalyst poison?

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asked Sep 9, 2020 in Surface Chemistry by Manoj01 (48.6k points)
closed Sep 10, 2020 by Manoj01

What is meant by catalyst poison?

surface chemistry
class-12

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answered Sep 9, 2020 by Susmita01 (43.8k points)
selected Sep 10, 2020 by Manoj01

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1. The substances when added to a catalysed reaction decreases or completely destroys the activity of a catalyst are often known as catalytic poisons.

2. In the reaction 2SO₂ + O₂ → 2SO₃ with Pt catalyst, the catalyst poison is AS₂O₃

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