MCQ
Major product will be


- ✓

- B

- C

- D







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$SO{{_{3}^{2-}}_{\left( aq. \right)}}+{{H}_{2}}{{O}_{\left( l \right)}}\to SO{{_{4}^{2-}}_{\left( aq. \right)}}+2{{H}^{+}}_{\left( aq. \right)}+2{{H}^{+}}_{\left( aq. \right)}+2{{e}^{-}}$
If the oxidation number of metal in the salt was $+3$, what would be the new oxidation number of metal?


| 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 |