B.P.S.C. (CDPO) (Pre) 2022
Breathing air polluted with carbon monoxide (CO) is dangerous, because—
aCO combines with oxygen in the blood
bCO combines with haemoglobin✓ Correct
cCO removes water from the body and causes dehydration
dCO causes the deposition of proteins in the body
eNone of the above/More than one of the above
Explanation
Breathing air polluted with carbon monoxide is dangerous because it combines with haemoglobin and disrupts blood circulation, which can lead to death. Carbon monoxide is a colorless and odourless gas, emitted from the burning of fuels in motor vehicles and furnaces.
general-science