1.

Trioxalatoaluminate (III) and tetrafluoroborate(III) ions are :

Answer»

`[AL(C_(2)O_(4))_(3)], [BF_(4)]^(3-)`
`[Al(C_(2)O_(4))_(3)]^(3+), [BF_(4)]^(3+)`
`[Al (C_(2)O_(4))_(3)]^(3-), [BF_(4)]^(-)`
`[Al(C_(2)O_(4))_(3)]^(2-), [BF_(4)]^(2-)`

SOLUTION :trioxalatoaluminate (III) - `[Al(O X)_(2)]^(3-)`
TETRAFLUOROBORATE (III) - `[BF_(4)]^(-)`


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