Question

In 2000 B.C, use of which element by Asians came into existence?
A.Fe
B.Sn
C.Pb
D.Ni

Answer 1

We can identify the element by predicting the history of Asia, and also using the ages of ancient history. There are totally two ages present in ancient history.

Complete step by step answer:
We can classify Matter into two kind’s namely pure substance and mixture.

Pure substance: A single component that has a constant composition, irrespective of the sample size and the sample origin is called a pure substance. We cannot break a pure substance to other pure substances by any physical change.
Example: Water, sugar etc.
We can classify a pure substance into an element and a compound.

Element: A pure substance, which cannot be broken down into smaller substances by a chemical reaction is called an element.
Example: Magnesium ribbon Hydrogen gas, and copper wire etc.

Compound: A pure substance that is formed by combination of two or more elements by chemical process is called a compound. Example: Sodium chloride is a compound as it is formed from elements sodium and chlorine.
Humans began to master that process in Eurasia only about 2000 BE and the usage of iron tools and weapons started to displace copper alloys, in certain regions, around 1200 BE. That event is considered the transition to the Iron Age from the Bronze Age.
All the four elements are metals, two elements belong to d-block and rest belongs to p-block.
Fe stands for iron. Twenty six is the atomic number of iron. It is present in the first transition series and belongs to group 8. It is the most common element on the planet by mass.
Sn stands for tin. Fifty is the atomic number of tin. It belongs to the carbon family and is seen in period-5.
Pb stands for lead. Eighty two is the atomic number of tin. It belongs to the carbon family and is seen in period-6. It is one of the heavy metals.
Ni stands for nickel. Twenty eight is the atomic number of nickel. It belongs to the carbon family and is seen in period-4. It is ductile and hard.
In 2000 B.C, Asians used metallic iron in the form of tools and weapons.

So, the correct answer is Option A.

Note:
In the present world, iron alloys like steel, cast iron and special steels are the most common industrial metals, due to their mechanical properties and low cost. Iron ores are the most abundant in the Earth's crust.