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Which is the formula for potassium trioxalatoaluminate(III)?
AK[Al(C2O4)3]
BK3[Al(C2O4)3]
CK2[Al(C2O4)3]
DK3[Al(C2O4)2]
Answer & Solution
Correct answer: B. K3[Al(C2O4)3]
Al3+ with three oxalate ions (-6) gives a 3- anion, needing three K+.
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