Chemistry
Match the following:
| Column A | Column B |
|---|---|
| A product of incomplete burning | Hopcolite |
| Nature of carbon monoxide | Combustible gas |
| A compound formed by the combination of haemoglobin and carbon monoxide | Carboxyhaemoglobin |
| A mixture of metallic oxides | Carbon monoxide |
| Carbon monoxide | Highly poisonous |