_ Which of the following is an adsorbant for removal of nitrogen oxide – McqOptions

MCQOPTIONS

1.	_ Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?$?
A.	Active carbon
B.	Silica gel
C.	Bog iron (iron oxide)
D.	Pulverised limestone
Answer» C. Bog iron (iron oxide)

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