Which can act as an acid as well as a base-

Which of the following species can act both as an acid as well as a base ?

Which of the following species can act both as an acid as well as a base ?

Assertion : HCO_3^- can act as an acid as well as a base Reason : HCO_3^- can lose as well as gain proton.

"Water is considered to be neutral. But, it can act as an acid as well as base". Illustrate the statement.

Which can act as an oxidising as well as a reducing agent ?

Which can act as an oxidising as well as a reducing agent ?

The species among the following which can act as an acid and as a base is

H_(2)O can act as acid as well as base.

Select the species which can act as an acid and as base:

Select the species which can act as an acid and as base: