Question

Fill in the Blanks: (CHEMISTRY CARBON and its COMPOUNDS) - Chapter

1)Carbon Monoxide burns in air with a ----------- flame to form carbon dioxide.
2)Carbon monoxide is a product of ----------- combustion.
3)A Mixture of 95% oxygen and 5% carbon dioxide is called ------------
4) Carbon monoxide is used as a ------------- in extraction of pure metals from their corresponding ores.

Answer 1

Answer:

1. In the presence of oxygen, including atmospheric concentrations, carbon monoxide burns with a blue flame, producing carbon dioxide.

2. CO is a product of the incomplete combustion of carbon-containing compounds. Stationary combustion sources produce CO, which is oxidized to CO2 while dispersing in the air from the stationary source.

3. Carbogen, also called Meduna'sMixture after its inventor Ladislas Meduna, is a mixture of carbon dioxideand oxygen gas. Meduna's original formula was 5% CO2 and 95% oxygen, but the term carbogen can refer to anymixture of these two gases, from 1.5% to 50% CO2. Carbon dioxide-oxygen mixture is a colorless odorless gas.

4. agent

Answer 2

Answer:

1. pale blue flame

2. carbon

3. meduna or carbogen

4. reducing agents