MCQ
The correct electronic configuration of a chloride ion is:
- A$2, 8$
- B$2, 8, 4$
- ✓$2, 8, 8$
- D$2, 8, 7$
Chloride ion, $\mathrm{Cl}^{-}$has $18$ electrons so, its electronic configuration is $2, 8, 8.$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Original length of strip (mm) | Final length of strip (mm) | |
| (i) | It is made up of dead cells. | Its cells are living |
| (ii) | Lumen or cell cavity is wide. | Lumen or cell cavity is usually narrow. |
| (iii) | It provides hardness to the region where it occurs. | It keeps the organ soft. |
| (iv) | Wall thickening is not uniform. | Wall thickening is uniform. |
| (v) | Pits are simple and straight. | Pits are simple, oblique and may be branched. |