Question

Which of the following gases cause haemorrhage if inhaled?
A. Carbon dioxide
B. Hydrogen sulphide
C. Ozone
D. Nitrogen oxide

Answer 1

Hint: Excessive discharge of blood from blood vessels is called hemorrhage. It can be used to describe blood loss. Blood loss can be internal or external. Internal bleeding occurs when blood is leaked out from a damaged organ or vessel. Let us know the effects of given gases if inhaled and based on that, we will find which gas causes hemorrhage if inhaled.

Complete answer:
Let us look into the effects of gases given when inhaled.
Carbon dioxide: when inhaled, it combines with water forming carbonic acid which lowers the pH of the blood. Its inhalation can lead to symptoms like rapid heart rate, rapid breathing, emotional upsets, fatigue,etc.
Hydrogen sulphide: Its inhalation affects primarily the lower respiratory tract and induces symptoms such as shortness of breath, and cough. It may also cause bronchitis and fluid accumulation in lungs at higher concentrations.
Ozone: Its inhalation can damage the lungs. Throat irritation, coughing, shortness of breath, and chest pain can be caused by relatively low amounts. Chronic respiratory diseases such as asthma may get worsened and the ability of the body to fight respiratory infections may also get compromised. Inhalation of low amounts of oxygen, approximately 0.1 ppm may lead to bleeding and swelling of the lungs. Ozone breathing also leads to hemorrhage of the intestine, lungs and stomach.
Nitrogen oxide: Brief, nonspecific symptoms such as cough, nausea, shortness of breath, and tiredness may result from breathing low levels of nitrogen oxide.

Thus, based on the above discussion, the correct answer is (C)- Ozone.

Note:
> When a hemorrhage interrupts blood flow around or inside the brain, the brain cells die due to deprivation of oxygen for more than three or four minutes. This is called brain hemorrhage.
> A person who has breathed nitrogen oxide can develop more serious lung injury over the next 1 to 2 days, even after removal from exposure.