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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 178 of 200

Q178
General ScienceBiology
Which of the following gases causes the formation of Carlamino haemoglobin?
  1. a.CO
  2. b.CO$_2$
  3. c.NO$_2$
  4. d.SO$_2$

Answer: (B) CO$_2$

Carbaminohaemoglobin forms when carbon dioxide binds to the amino groups of haemoglobin, carrying about 20–25% of the CO$_2$ in blood. Carbon monoxide forms carboxyhaemoglobin instead, which makes (A) the tempting wrong option.

Q177 Whole paperQ179