What is lightning ?

What is oxidation ? What are oxidisizing agents and give example .

Four metal conductors having different shapes 1. a sphere 2. cylindrical 3. pear 4. lightning conductor are mounted on insulating stands and charged. The one which is best suited to retain the charges for a longer time is

What is Oxidation Number? What is the oxidation Number of Cl is KClO_(3) ?

Tick T for true and F for false in the following statememnts: Lightning conductor cannot protect a building from lightning. (T/F)

Lightning the thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier and thunder is heard later. Can you explain why ?

What is gangue and what is concentration?

What is tincture of iodine and what is it used for ?

What is Brownian movement ? What is the cause for it ?