Complete the following equations:

(i) P₄ + H₂O→

(ii) XeF₄ + O₂F₂ →

For a chemical reaction R→P the variation in the concentration (R) vs. time (t) plot is given as:

(i) Predict the order of the reaction.
(ii) What is the slope of the curve?

Explain the principle of the method of electrolytic refining of metals. Give one example.

Draw the structures of the following:

(i) XeF₂

(ii) BrF₃

Write the equations involved in the following reactions:
(i) Reimer – Tiemann reaction
(ii) Williamson synthesis