True increasing order of acidity of the oxides of Mn is:
Correct answer: A. MnO < MnO2 < MnO7
- A. MnO < MnO2 < MnO7
- B. Mn2O > MnO2 < MnO
- C. MnO2 > MnO > Mn2O7
- D. MnO2 > Mn2O7 > MnO
Explanation
Oxides of manganese demonstrate different acidities based on the oxidation state of manganese. Lower oxidation states correspond to more basic oxides, while higher oxidation states result in more acidic oxides. Therefore, the correct order based on increasing acidity is MnO (Mn in +2 oxidation state) < MnO2 (Mn in +4 oxidation state) < MnO7 (Mn in +7 oxidation state).
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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