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Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > Why the valency of phosphate ion is 3-?
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Why the valency of phosphate ion is 3-?

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Valency of P is 5, and valency of O is 2, in phosphate 4 o atom are there so total valency O2 is 4*2=8 and net valency of phosphate will be 8-5=3 so PHOSPHATE ion has 3 valency.
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valence of phosphate ion is 3- is as follows we know that valency of P is 5 valency of O is 2 In phosphate 4 O atoms are there so total valency of oxygen will be:4*2=8 Net valency on phosphate will be:8-5=2 This is the reason phosphate is represented as PO43-
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Phosphate formula is PO4, here oxygen valancy is -2 so 4x2=-8, phosphate can exist in +5 oxidation state, so that here phodphate valancy is -3.
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H3PO3. See, the valency of phosphate is 3 because it can donate 3 electron from its outer most shell. Refer to the SPDF system in NCERT
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Replace dissociable hydrogen witch are attached with oxygen
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Refer to structure of phosphate on Google. Phosphorus is bonded with 4 oxygen atoms with 5 bonds oxygen being more electronegative gives phosphorus +5 oxidation number 4 oxygen atoms on the other hand will remain in their most common oxidation number of -2. total oxidation number of Phosphate is...
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Refer to structure of phosphate on Google. Phosphorus is bonded with 4 oxygen atoms with 5 bonds oxygen being more electronegative gives phosphorus +5 oxidation number 4 oxygen atoms on the other hand will remain in their most common oxidation number of -2. total oxidation number of Phosphate is Phosphorus + 4 x oxygen i.e. +5 - 2 x 4 = -3 read less
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