Question

Most abundant metal in earth crust is………….
A.Al
B.O
C.Fe
D.Si

Answer 1

Hint: Bauxite is an ore of one of the most abundant metals in earth crust and the metal is from group 3. Now try to find the answer using these hints.

Complete step by step answer:
Let's look at the Percent abundance of given elements in the earth's crust are :
Oxygen - 46.6%
Aluminium - 8.1%
Calcium - 3.63%
Gold - 0.0011%
Most abundant element is Oxygen followed by Silicon. However, both( O & Si ) of these two are non-metals.
Silicon is followed by Aluminium which is the most abundant metal. Therefore, Aluminium is the most abundant metal available in the Earth’s crust.
 Therefore the correct option is A.
Additional information:There is a vast distribution of metals like iron, magnesium and aluminium on earth.But they are present in different parts of earth's interiors.
Earth crust contains aluminum in abundant amounts over the continental region while earth crust contains magnesium in abundant amounts over the ocean region. Deep down to the earth's surface, in the core of our planet, iron is the most abundant metal making it gravitationally active.


Note: The most abundant metals are 8.1% of aluminium, 5.0% of iron and 3.6% of calcium, followed closely by Na, K, Mg and Ti. Iron is the second most abundant metal in the earth's crust. It is also the most widely used metal.
The most common mineral is a feldspar.The second most common mineral found in rocks at the earth’s surface is quartz, which is very common in granite, but rare to nonexistent in basalt.