Write two methods of protection from lighning.

Give two methods to protect iron from rusting.

(a) What is galvanisation ? (b) Give three methods to protect iron from rusting. (c) Discuss the factors responsible for rusting of iron or corrosion. (d) Name a chemical which is used for preventing rusting of iron.

Give two methods of preparation of haloalkanes.

Write two methods of breaking seed dormancy.

Suggest three measures to protect ourselves from lightning.

List two methods of producing magnetic fields.