Question

Which gas causes extreme headache and nausea, and in high enough concentrations causes unconsciousness and the lips and fingernail beds to turn bright red?

Answer 1

Carbon monoxide (CO) is the gas that causes extreme headache, nausea, unconsciousness, and turns the lips and fingernail beds bright red. It interferes with the delivery of oxygen throughout the body, leading to various symptoms.

Step-by-step explanation:

The gas that causes extreme headache, nausea, unconsciousness, and turns the lips and fingernail beds bright red is carbon monoxide (CO). Carbon monoxide is a colorless, odorless gas that interferes with the delivery of oxygen throughout the body. It binds to hemoglobin in the blood, preventing oxygen from being transported and leading to symptoms such as headache, dizziness, weakness, and confusion.