A) carbon disulphide
B) chloroform
C) carbon dioxide
D) carbon monoxide
Correct Answer: D
Solution :
| [D] Carbon monoxide forms a stable compound with haemoglobin called carboxy haemoglobin as affinity of Hb for CO is 210 times greater than its affinity for O2. In this form haemoglobin does not carry oxygen resulting in death too. \[\underset{haemoglobin}{\mathop{Hb}}\,+CO\rightleftharpoons \underset{carboxy\,haemoglobin}{\mathop{Hb\,CO}}\,\] |
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