MCQ
Which combination is best for preparation of the compound $(A)$ shown below ?


- A

- ✓

- C

- D








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| List-1 | List-II | ||
| (A) | $Al ^{3+}< Mg ^{2+}< Na ^{+}< F ^{-}$ | (I) | Ionisation Enthalpy |
| (B) | B < C < O < N | (II) | Metallic character |
| (C) | B < Al < Mg < K | (III) | Electronegativity |
| (D) | Si < P < S < Cl | (IV) | Ionic radii |