Quick practice

Question 1 of 5

Choose the correct statement regarding health effects of Carbon monoxide (CO).

A

It combines with haemoglobin to produce carboxyhaemoglobin, which usurps the space in haemoglobin that normally carries oxygen.

B

All of these

C

It is toxic to haemoglobin animals (including humans)when encountered in concentrations above about 35 ppm.

D

Carbon monoxide poisoning is the most common type of fatal air poisoning

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