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Can phosphorus with outer electronic con...

Can phosphorus with outer electronic configureation `3s^2 3p^3 " form "PH_5`?

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5 oxidation state of phosphorus is not possible.
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a. Would you except the hydrides of N,O and F to have lower boiling points than the hydrides of their subsequent group members? Give reason. b. Can phosphorous with outer electronic configuration 3s^(2)3p^(3) form PH_(5) ? c. How many hydrogen-bonded water molecules(s) are associated with CuSO_(4).5H_(2)O ?

a. Would you expect the hydrides of N,O and F to have lower boiling points than the hydrides of their subsequent group members? Give reason. b. Can phosphorous with outer electronic configuration 3s^(2)3p^(3) form PH_(5) ? c. How many hydrogen-bonded water molecules(s) are associated with CuSO_(4).5H_(2)O ?

Phosphorus cannot form PH_(5) with its outer electronic configuration as 3s^(3)3p^(3) because (A)phosphorus cannot show +5 oxidation state (B)P H 5 is not a stable compound (C)Δ a H value of dihydrogen and Δ e g H value of hydrogen do not favour higher oxidation state of phosphorus (D)phosphorus is not very reactive hence does not form P H 5

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