Answer
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Hint: ${P_4}{O_{10}}$ is an oxide of phosphorus. Its chemical name is phosphorus pentoxide, because it is a dimer of ${P_2}{O_5}$ . In ${P_4}{O_{10}}$ , oxygen is in $ - 2$ oxidation state and phosphorus is in $ + 5$ oxidation state.
Complete step by step answer:
Structure of ${P_4}{O_{10}}$ is shown below.
In ${P_4}{O_{10}}$ , all the phosphorus atoms are $s{p^3}$ hybridised with a tetrahedral structure. $s{p^3}d$ hybridisation is preferred for phosphorus atom over $s{p^3}$ hybridisation. But for ${P_4}{O_{10}}$ , $s{p^3}$ hybridisation is more stable than $s{p^3}d$. Hence ${P_4}{O_{10}}$has four $s{p^3}$ hybridised phosphorus atoms. Option A is correct.
${P_4}{O_6}$ is another oxide of phosphorus. Both ${P_4}{O_6}$ and ${P_4}{O_{10}}$ contains six P-O-P bond and $4$ six membered ring. In ${P_4}{O_6}$ , the atomic orbitals containing lone pairs have more s-character and less p-character. Hence they have shorter bond length. But the bonding orbitals have more p-character and less s-character and hence a longer bond length. But in ${P_4}{O_{10}}$ the bonding orbitals have more $s\% $ character compared to that in ${P_4}{O_6}$ . The bonding orbitals means the P-O bond. Hence ${P_4}{O_6}$ has a higher $s\% $ character in P-O bond than the ${P_4}{O_6}$. Option B is also correct.
From the structure given above, we can see that ${P_4}{O_{10}}$ has a cage like structure. Hence option C is correct.
The terminal P-O bonds in ${P_4}{O_{10}}$ are formed by ${p_\pi } - {d_\pi }$ bonding. p-orbitals of oxygen overlap with empty d-orbitals of phosphorus. The phosphorus atom donates its lone pair to this bonding forming a $\pi $ - back bonding. Hence option D is correct.
Options A,B,C and D correct for ${P_4}{O_{10}}$ .
Note:
Phosphorus can show $ + 3$ and $ + 5$ oxidation states. Hence it forms two oxides ${P_2}{O_3}$ and ${P_2}{O_5}$ with oxidation states $ + 3$ and $ + 5$ respectively. But their monomeric form is not stable. This is the reason why they exist as dimer - ${P_4}{O_6}$ and ${P_4}{O_{10}}$.
Complete step by step answer:
Structure of ${P_4}{O_{10}}$ is shown below.
In ${P_4}{O_{10}}$ , all the phosphorus atoms are $s{p^3}$ hybridised with a tetrahedral structure. $s{p^3}d$ hybridisation is preferred for phosphorus atom over $s{p^3}$ hybridisation. But for ${P_4}{O_{10}}$ , $s{p^3}$ hybridisation is more stable than $s{p^3}d$. Hence ${P_4}{O_{10}}$has four $s{p^3}$ hybridised phosphorus atoms. Option A is correct.
${P_4}{O_6}$ is another oxide of phosphorus. Both ${P_4}{O_6}$ and ${P_4}{O_{10}}$ contains six P-O-P bond and $4$ six membered ring. In ${P_4}{O_6}$ , the atomic orbitals containing lone pairs have more s-character and less p-character. Hence they have shorter bond length. But the bonding orbitals have more p-character and less s-character and hence a longer bond length. But in ${P_4}{O_{10}}$ the bonding orbitals have more $s\% $ character compared to that in ${P_4}{O_6}$ . The bonding orbitals means the P-O bond. Hence ${P_4}{O_6}$ has a higher $s\% $ character in P-O bond than the ${P_4}{O_6}$. Option B is also correct.
From the structure given above, we can see that ${P_4}{O_{10}}$ has a cage like structure. Hence option C is correct.
The terminal P-O bonds in ${P_4}{O_{10}}$ are formed by ${p_\pi } - {d_\pi }$ bonding. p-orbitals of oxygen overlap with empty d-orbitals of phosphorus. The phosphorus atom donates its lone pair to this bonding forming a $\pi $ - back bonding. Hence option D is correct.
Options A,B,C and D correct for ${P_4}{O_{10}}$ .
Note:
Phosphorus can show $ + 3$ and $ + 5$ oxidation states. Hence it forms two oxides ${P_2}{O_3}$ and ${P_2}{O_5}$ with oxidation states $ + 3$ and $ + 5$ respectively. But their monomeric form is not stable. This is the reason why they exist as dimer - ${P_4}{O_6}$ and ${P_4}{O_{10}}$.
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