Question
Write the names of the elements present in groups $13, 14$ and $15.$
| Group | Name of family | Name of the elements |
| $13$ | Boron family | Boron $(_5B),$ aluminium $(_{13}Al),$ gallium $(_{31}Ga),$ indium$ (_{49}In),$ thallium $(_{81}Tl)$ |
| $14$ | Carbon family | Carbon $(_6C),$ silicon $(1_4Si),$ germanium $(_{32}Ge),$ tin $(_{50}Sn),$ lead $(_{82}Pb)$ |
| $15$ | Nitrogen family | Nitrogen $(_7N),$ phosphorus $({15}P),$ arsenic $(3_3AS),$ antimony $(_{51}Sb),$ bismuth $(_{83}Bi)$ |
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| Column ‘A’ | Column ‘B’ | ||
| i. | Inductive effect | a. | Delocalization of π electrons |
| ii. | Hyperconjugation | b. | Displacement of π electrons |
| iii. | Resonance effect | c. | Delocalization of σ electrons |
| d. | Displacement of σ electrons |