Write the expected formulas for the hydrides of 4^th period elements. What is the trend in the formulas? In what way the first two members of the series different from the others?

Complete the following chemical reactions and classify them into
(a) hydrolysis (b) redox (c) hydration reactions.
(1) KMnO₄ + H₂O₂ ➝
(2) CrCl₃ + H₂O ➝
(3) CaO + H₂O ➝

Hydrogen peroxide can function as an oxidising agent as well as reducing agent. substantiate this statement with suitable examples.

What are isotopes? Write the names of isotopes of hydrogen.

Give the uses of heavy water?

Explain the exchange reactions of deuterium.

How do you convert para hydrogen into ortho hydrogen?

Mention the uses of deuterium.

Arrange NH₃, H₂O and HF in the order of increasing magnitude of hydrogen bonding and explain the basis for your arrangement.

Do you think that heavy water can be used for drinking purposes?