Cyclic polymetaphosphates have the general fo | vedclass

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(D) The cyclic trimeric polymetaphosphate anion $(P_3O_9)^{3-}$ consists of a ring of $3$ phosphorus atoms alternating with $3$ oxygen atoms,with each

Vedclass · Accepted Answer

Number of $P-O-P$ linkages is not equal to number of $sp^3$ hybridized phosphorus atoms.

Vedclass · Answer

(D) The cyclic trimeric polymetaphosphate anion $(P_3O_9)^{3-}$ consists of a ring of $3$ phosphorus atoms alternating with $3$ oxygen atoms,with each phosphorus atom also bonded to two terminal oxygen atoms (one double-bonded and one single-bonded). $1$. The structure contains $3$ $P-O-P$ linkages in the ring. $2$. Each phosphorus atom is $sp^3$ hybridized. $3$. Each phosphorus atom forms one $P=O$ bond,which involves $p\pi-d\pi$ back-bonding. Since there are $3$ phosphorus atoms,there are $3$ $P=O$ bonds,hence $3$ $p\pi-d\pi$ bonds. $4$. The number of $P-O-P$ linkages is $3$,and the number of $sp^3$ hybridized phosphorus atoms is $3$. Thus,they are equal. Therefore,the statement in option $D$ is incorrect.

Cyclic polymetaphosphates have the general formula of $[P_nO_{3n}]^{n-}$. Cyclic trimeric polymetaphosphate $(P_3O_9)^{3-}$ has commercial importance. Which of the following is not true regarding $P_3O_9^{3-}$?

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