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Preparations and Uses of Caustic Soda

In manufactur...

Question

In manufacturing of sulphuric acid in presence of platinum catalyst, which metal impurity acts as catalytic poison?

A

A s

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B

C r

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C

C u

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D

V

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Solution

The correct option is A $A s$
In the manufacturing of sulphuric acid in presence of a platinum catalyst, arsenic metal impurity (in the form of $A s_{2} O_{3}$ ) acts as a catalytic poison.

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