alleryThe most abundant metal in the Earth's crust is
AIron
BAluminium
CSodium
DCopper
Answer & Solution
Correct answer: B. Aluminium
1. Aluminium is the most abundant metal in the Earth's crust (about 8.1 %).
2. Iron is the second most abundant metal (about 5 %).
3. Oxygen and silicon are more abundant overall (but not metals).
4. Aluminium is extracted from its ore bauxite.
_Source: syllabus Science, Ch 3 "Metals and Non-metals", §3.4_
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