Question

The very toxic gas which causes a headache, visual difficulty, paralysis, and even death in human beings is:
$A.C{O_2} \\\ B.{O_3} \\\ C.CO \\\ D. None\; of\; these$

Answer 1

Carbon dioxide is a global warming gas which is harmful but not to this extent, even if it is realized by the plants in a plenty of quantity. CO is non irritant, odorless gas which is mainly produced by the incomplete combustion of carbon or carbon based fuel. It can be mixed freely with any proportion and it can be transported in bulk. It reacts with haemoglobin to form carboxyhemoglobin which is very harmful for the respiration process.

Complete step by step answer:
Here carbon monoxide that is also written as CO is the most poisonous gas present here which can cause a headache, visual difficulty, paralysis, and even death in human beings.
When this gas is inhaled it directly hits the nervous system and can damage the neurons, when it comes in contact with the blood, it combines with the haemoglobin present in the blood (red pigment) which cutoff the supply of oxygen due to very readily active with the reaction of haemoglobin to form carboxyhemoglobin.
Carbon dioxide is a global warming gas which is harmful but not to this extent, even it is realized by the plants in a plenty of quantity.
CO can even cause oxygen deficiency in the human body. It is three hundred times more harmful than carbon dioxide.

So, the correct answer is Option C.

Note: CO is non irritant, odorless gas which is mainly produced by the incomplete combustion of carbon or carbon based fuel. It can be mixed freely with any proportion and it can be transported in bulk. It reacts with haemoglobin to form carboxyhemoglobin which is very harmful for the respiration process.