Trioxalato aluminate (III) and tetrafluoro-borate (III) ions are:

Options

A. `[Al(C_(2)O_(4))_(3)], [BF_(4)]^(3-)`
B. `[Al(C_(2)O_(4))_(3)]^(3+), [BF_(4)]^(3+)`
C. `[Al(C_(2)O_(4))_(3)]^(3-), [BF_(4)]^(-)`
D. `[Al(C_(2)O_(4))_(3)]^(2-), [BF_(4)]^(2-)`

Answer

C

Explanation

Trioxalato aluminate (III) ion is `[Al(C_(2)O_(4))_(3)]^(-3)`
Tetrafluoro-borate (III) ion is `[BF_(4)]^(-)`