Write reactions to justify the amphoteric nature of Al.

Write chemical reactions to show amphoteric nature of water.

Give one reaction supporting the amphoteric nature of water.

H_2O and HCO_3 are amphoteric in nature. Establish the amphoteric nature of H_2O with suitable examples.

What is meant by amphoteric nature of water?

Write chemical reactions to justify that H_2O_2 can function as an oxidising as well as reducing agent.

Write chemical reactiöns to justify that hydrogen peroxide can function as an oxidizing as well as reducing agent.

Electromagnetic radiation has dual character i.e. particle character as well as wave character. Name two phenomenon each to justify the particle and wave nature.

Explain the amphoteric behavior of amino acid.