MCQ
Sodium has one electron in its outer shell and chlorine has 7 electrons in its outer shell. The atoms will form a __________ bond by __________ their electrons.
- ACovalent, sharing
- BCovalent, transferring
- ✓Ionic, transferring
- DIonic, sharing
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| Ion | Colour | |
| (a) | $Ni ^{+2}$ | Yellow |
| (b) | $Fe ^{+3}$ | Yellowish - brown |
| (c) | $CrO _4{ }^{2-}$ | Yellow |
| (d) | $Fe ^{+2}$ | Green |