When the first element of the periodic


When the first element of the periodic table is treated with dioxygen, it gives a compound whose solid-state floats on its liquid state. This compound can act as an acid as well as a base. What products will be formed when this compound undergoes authorisation?


Hydrogen is the first element and when it reacts with dioxygen it forms water. Water has an amphoteric nature that acts as both acid and base. The solid-state of water is

ice. It floats on water due to its lower density.

Auto protolysis or auto ionisation of water is self ionisation of water. It is one of the chemical properties of water. Here, two same molecules react to give ions involving

proton transfer. This reaction also shows amphoteric nature.

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