What is homoatomic molecule ? Give two examples .

(a) What is a homoatomic molecule? Give two examples. (b) State two conditions necessary for rusting of iron.

What is a heteroatomic molecule ? Give two examples .

What are Bioreacter molecules ? Give two examples.

What is an emulsion ? Give two examples.

What are polar molecules ? Give examples.

What is odd-electron molecule ? Give one example.