An experiment produces a gaseous mixtures of carbon (IV) oxide and carbon (II) oxide. In order to obtain pure carbon (II) oxide, the gas mixture should be?A. passed over heated copper (II) oxideB. bubbled through concentrated tetraoxosulphate (IV) acidC. bubbled through sodium hydroxide solutionD. bubbled through water

The correct answer is C. Bubbled through sodium hydroxide solution.

Here's the step by step explanation:

1. Carbon (IV) oxide, also known as carbon dioxide (CO2), and carbon (II) oxide, also known as carbon monoxide (CO), are both gases.

2. Sodium hydroxide (NaOH) is a strong base that reacts with carbon dioxide (CO2) to form sodium carbonate (Na2CO3) and water (H2O). The reaction is as follows: 2NaOH + CO2 -> Na2CO3 + H2O.

3. This reaction does not occur with carbon monoxide (CO), so when the gas mixture is bubbled through a sodium hydroxide solution, the carbon dioxide reacts with the sodium hydroxide and is removed from the gas mixture.

4. The remaining gas, which is carbon monoxide (CO), can then be collected.

So, by bubbling the gas mixture through a sodium hydroxide solution, you can obtain pure carbon monoxide.