# Write Chemical Reactions to Show the Amphoteric Nature of Water. - Chemistry

Write chemical reactions to show the amphoteric nature of water.

#### Solution

The amphoteric nature of water can be described on the basis of the following reactions:

1) Reaction with H2S

The reaction takes place as:

In the forward reaction, H_2O_((l)) accepts a proton from H_2S_((aq)). Hence, it acts as a Lewis base.

2) Reaction with NH3

The reaction takes place as:

In the forward reaction, H_2O denotes its proton toNH_(3(aq)). Hence, it acts as a Lewis acid.

3) Self-ionization of water

In the reaction, two water molecules react as:

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#### APPEARS IN

NCERT Class 11 Chemistry Textbook
Chapter 9 Hydrogen
Q 24 | Page 289