First slide

Air Pollution and its Control

Question

A scrubber in the exhaust of a chemical industrial plant removes

Easy

A

particulate matter of the size 2.5 micrometer or less
B

gases like Sulphur dioxide
C

particulate matter of the size 5 micrometer or above
D

gases like ozone and methane

Solution

A scrubber can remove gases like sulphur dioxide. In a scrubber, the exhaust is passed through a spray of water or lime.

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