2020 The p-Block Elements (Group 13 and 14)Carbon Family – Oxides of Carbon Medium Question 7 of 9 in The p-Block Elements (Group 13 and 14)

Which of the following is not correct about carbon monoxide?

A It reduces oxygen carrying ability of blood.
B The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin.
C It is produced due to incomplete combustion.
D It forms carboxyhaemoglobin.

The answer is B.

Solution

Carboxyhaemoglobin is about 300 times more stable than oxyhaemoglobin (not less stable). So 'carboxyhaemoglobin is less stable than oxyhaemoglobin' is not correct.

Concept carbon monoxide and carboxyhaemoglobin

The p-Block Elements (Group 13 and 14) in past papers

9 questions from this chapter have appeared across 4 exam years.