Question

Most abundant metal in the earth’s crust is ______________.

Answer 1

Hint: To answer this question we must know about the composition of earth’s crust. The crust is the outermost surface made up of many igneous, metamorphic and sedimentary rocks and also many metals though none of them in pure form.

Complete step by step answer:
Firstly, we should note almost about eight percent of the Earth's crust is made up of aluminum, making it the most abundant metal on this planet. But, we always find it in a combined state with various other elements and never by itself in a pure state. Two of the most occurring aluminum compounds are alum and aluminum oxide.
Most of the world's aluminum comes from its most common ore called bauxite. This rock contains aluminum combined with oxygen. Water is removed from the bauxite, leaving aluminum oxide, from which aluminum is refined by various processes of metallurgy.
Aluminum is soft and durable. It is a lightweight metal that is extremely malleable. It is not magnetic in nature and is resistant to corrosion. It can dissolve in water under the specific conditions, although this does not normally occur. Other common elements include iron at 5%, calcium at 3.6% followed by Sodium, Potassium and Magnesium among others.
Hence, the correct answer is Aluminum.

Additional information:
Aluminum is essential in the manufacturing of cans, foils, parts of aeroplanes and rockets due to its lightweight and durability. It is an important ingredient in many synthetic materials.

Note: Interesting information is although it is so abundant, aluminum was once considered as precious as gold. It was extremely difficult and costly to extract aluminum from its ore.