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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: syllabus Chemistry, Unit 7 'Redox Reactions'_

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