Which of the following statement(s) is/are incorrect:

A sink of

S O_{2}

pollutant is

O_{3}

in the atmosphere

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FGD is a process of removing

N O_{2}

from atmosphere

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N O_{x}

in fuel gases can be removed by alkaline scrubbing

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The catalyst used to convert

C C l_{4}

C F_{4}

by HF is

S b F_{5} \cdot

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Solution

The correct options are
B FGD is a process of removing $N O_{2}$ from atmosphere
C $N O_{x}$ in fuel gases can be removed by alkaline scrubbing
FGD is a set of technologies used to remove $S O_{2}$ from exhaust flue gases of fossil-fuel power plants and from the emissions of other $S O_{2}$ emitting processes.
$N O_{x}$ in fuel gases can be removed by pyrolusite slowly.

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