MCQ
Which of the following metals forms predominantly ionic compounds?
- AK, Mg, Ca
- BLi, Be
- CLi, Be, Mg
- ✓K, Ca, Ba
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$\ce{2C6H6_{(l)} + 15O2_{(g)} -> 12CO2_{(g)} + 6H2O_{(l)}}$ at 25°C in kJ