Which of the following is the most poisonous gas ?
Correct answer: D. L.D. converter gas
- A. Coke oven gas
- B. Producer gas
- C. Blast furnace gas
- D. L.D. converter gas
Explanation
L.D. converter gas is especially poisonous because it contains a very high concentration of carbon monoxide, which combines strongly with haemoglobin and prevents oxygen transport. Coke-oven, producer and blast-furnace gases can also contain CO, but generally at lower concentrations.
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