When the concentration of SO 2 in air is greater than __________ ppm, it gives a – OfficerPath

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MCQ Practice

When the concentration of SO 2 in air is greater than __________ ppm, it gives a pungent smell.

Subject: Chemical EngineeringTopic: Environmental Engineering In Ce

A

0.01

B

0.1

C

1

D

4

Correct Answer: D

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