Question

6.
This gas combines with blood and prevents it from carrying oxygen
(a) Carbon monoxide
(b) Carbon dioxide
(c) Nitrogen dioxide
(d) Sulphur dioxide​

Answer 1

Answer:

a) carbon monoxide

Explanation:

Answer 2

Answer:

Carbon monoxide

Explanation:

It's because Carbon monoxide forms a stable compound with haemoglobin called carboxyhemoglobin which is much stable than the compound formed with oxygen.