InterviewSolution
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InterviewSolution
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In any period, the valency of an element with respect to oxygenA. charges randomlyB. increases one by one from `IA`to `VIIA`C. decreases one by one from `IA`toVIIA`D. `increases one by one from `IA`to `IVA` and then decreases from `VA` to `VIIA` one by one |
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Answer» Correct Answer - B Oxygen is the `2nd` most electronagative elemnt, thus, it bringes out the maximum oxidation number of the element as reflected by the formulas of oxides: `|{:("Group",I,II,III,IV,V,VI,VII),("Formula",E_(2)O,EO,E_(2)O_(3),EO_(2),E_(2)O_(5),EO_(3),E_(2)O_(7)),("Valanvy",1,2,3,4,5,6,7):}:|` where `E` is the element. |
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