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Aluminium is regarded as having which oxidation number?
APlus seven
BPlus eight
CPlus eleven
DPlus three
Answer & Solution
Correct answer: D. Plus three
1. The value holds in all its compounds.
2. It sits one group beyond the alkaline earths.
3. It is plus three.
_Source: NCERT Class 11 Chemistry, Unit 7 'Redox Reactions'_
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