Most abundant metal in earth’s crust is?

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answer is B.

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Detailed Solution

Concept- If we look at the percentage abundances of the following mentioned elements.
A class of material with a high thermal/electrical conductivity is a metal.
In nature, metals are often ductile and malleable.
Generally speaking, metals have a glossy look.
With a percentage of 8.9%, aluminum is the metal that is most prevalent in the crust of the Earth. Aluminum is a silvery-white metal that is also incredibly light. It is an excellent heat and electrical conductor.
The justification for wrong choices is:
1) Although it is a non-metal, oxygen makes up 46.6% of the Earth's crust, making it the most prevalent element.
3) The amount of calcium, an alkaline earth metal, in the crust of the Earth is 3.6%.
4) A very small proportion of the crust of the Earth contains gold.
Hence, option 2, or aluminum, is the right choice.

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