Q.

Second most abundant metal in earth crust

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a

Al

b

Fe

c

Cu

d

Au

answer is C.

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Detailed Solution

Explanation:

  • Aluminum (Al) is the second most abundant metal in the Earth's crust, constituting about 8.23% of the Earth's crust by weight.
  • Iron (Fe) is the most abundant metal, making up about 5.0% of the Earth's crust.
  • Copper (Cu) and Gold (Au) are much less abundant compared to Aluminum.

Final Answer

Thus, Aluminum is the correct choice, being second only to iron in terms of abundance.

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