How is hydrogen peroxide prepared industrially ? Explain why it is stored in coloured wax-lined glass or plastic bottles ?

Why is hydrogen proxide kept in coloured bottles ?

How to prepare hydrogen peroxide from BaO_(2)?

Explain why plastic containers are favoured for storing food.

(a) (i) Explain the reduction of nitrocompound of nitrocompounds to amines with an example . (ii) Why aromatic primary amines cannot be prepared by Gabriel synthesis ? (b) How is aniline converted into phenyl isocyanide? Write the equation .

Why do different colours get separated when a white light passes through a prism ? How can we recombine the components of white light after a prism has separated them ? Explain with the help of a figure.