Dioxygen: Preparation, Structure, Properties and Uses

Oxygen is prepared by:

On electrolysis of dil. sulphuric acid using Platinum $\left(\mathrm{Pt}\right)$ electrode, the product obtained at anode will be

Low pressure _____ oxygen is used as breathing gas in space suits.

_____ flame is produced by burning acetylene with oxygen.

Complete the following reactions -

$4 \mathrm{Al} +3 {\mathrm{O}}_2\to \_\_\_\_\_$

How is oxygen prepared by thermal decomposition of certain metallic oxides?
 

Why is sulphur a solid and dioxygen a gas?

Complete the following reactions -

${\mathrm{C}}_2{\mathrm{H}}_4+{\mathrm{O}}_2\to \_\_\_\_\_$

Which of the following element does not react directly with oxygen?

$\mathrm{Zn}, \mathrm{Ti}, \mathrm{Pt}, \mathrm{Fe}$

${\mathrm{KO}}_2$ Finds use in breathing equipment and safeguards the user to breathe in oxygen generated internally in the apparatus without being exposed to toxic fumes outside. The supply of oxygen is due to

Which of the following is compound?

Oxygen is not evolved when :