Important Facts about Some Metals (PART-I)

1. Zinc Phosphide is used for killing rats.
2. Wood furnitures are coated with zinc chloride to prevent termites.
3. Excess of copper in human beings causes disease called wilson.
4. Galvanised iron is coated with zinc.
5. Rusting of iron is a chemical change with increase the weight of iron.
6. Calcium Hydroxide is called Hydrolith.
7. Calcium hydride is used to prepare fire proof and waterproof clothes.
8. In flash bulbs, magnesium wire is kept in atmosphere of nitrogen gas.
9. Titanium is strategies metal because it is lighter than iron.
10. Group 1st elements are called alkali metals because its hydroxides are alkaline whereas group 2nd elements are called alkaline earth metals.