The most abundant metal in the earth's crust is (1) Oxygen (2) Aluminium (3) Calcium (4) Gold

Answer: (2)

In the earth crust, oxygen percentage is 46.6 but oxygen belongs to the non-metal group.

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.

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