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In the reactions 2SO(2) + O(2) underset(...

In the reactions `2SO_(2) + O_(2) underset(As_(2)O_(3))overset(Pt)(rarr) 2SO_(3), As_(2)O_(3)` acts as a

A

Autocatalyst

B

Poison

C

Promoter

D

Positive Catalyst

Text Solution

Verified by Experts

The correct Answer is:
B
`2SO_(2)+O_(2) underset(As_(2)S_(3)("Poison"))overset("Pt(catalyst)")(rarr)2SO_(3)`
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