Please answer the question below

Dear Student

(ii) When ethane burns in an insufficient supply of air then carbon monoxide and water vapours are formed.
2C2H6 + 5O2 →4CO + 6H2O  

Haemoglobin of blood binds to the oxygen and carries them to the cell. Without haemoglobin oxygen cannot be transported. Haemoglobin has more affinity to carbon monoxide than oxygen. Carbon monoxide if enters the body directly binds with the haemoglobin in such a way that oxygen cannot bind with it. Thus haemoglobin fails to transport oxygen to the cells. Without oxygen cells cannot perform cellular respiration and energy cannot be released. As a result cells start dying up and our body starts feeling suffocated.

(iii) Argon is bigger than chlorine because argon being inert it's outermost shell is completely filled thus a force of repulsion acts between the outermost electron and the nucleus causing it to grow bigger in size than chlorine.

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