The correct statement with respect to $\mathrm{CO}$ is

The correct statement with respect to $\mathrm{CO}$ is
  1. it combines with $\mathrm{H}_{2} \mathrm{O}$ to give carbonic acid
  2. it reacts with haemoglobin in RBC
  3. it is powerful oxidising agent
  4. it is used to prepare aerated drinks

Solution

$\mathrm{CO}$ react with haemoglobin, forms carboxy haemoglobin and stopes the supply of $\mathrm{O}_{2}$ ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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