Cyclic polymetaphosphates have the general fo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The cyclic trimeric metaphosphate is $P_3O_9^{3-}$.In this structure,each phosphorus atom is bonded to two bridging oxygen atoms and two non-bridg

Vedclass · Accepted Answer

$P_3O_9^{3-}$ and the trimeric form of $SO_3$ have the same number of $p\pi-d\pi$ bonds

Vedclass · Answer

(B) The cyclic trimeric metaphosphate is $P_3O_9^{3-}$.In this structure,each phosphorus atom is bonded to two bridging oxygen atoms and two non-bridging oxygen atoms (one of which is double-bonded to phosphorus).$1$. The structure consists of a ring of alternating $P$ and $O$ atoms,so there are no $P-P$ linkages.$2$. In $P_3O_9^{3-}$,each of the $3$ phosphorus atoms has one $P=O$ bond,contributing $3$ $p\pi-d\pi$ bonds. Similarly,the trimeric form of $SO_3$ $(S_3O_9)$ has $3$ $S=O$ bonds,each contributing $p\pi-d\pi$ character,making the number of $p\pi-d\pi$ bonds equal.$3$. The $P-O$ bond lengths are not identical because there are $P-O$ single bonds (bridging) and $P=O$ double bonds (terminal).$4$. Each phosphorus atom is surrounded by $4$ oxygen atoms in a tetrahedral geometry,meaning each phosphorus is $sp^3$ hybridised.

Cyclic polymetaphosphates have the general formula $(PO_3)_n^{n-}$. Which of the following statements is true for the cyclic trimeric metaphosphate?

Similar Questions

Which one of the following is not correct?

$A$ metalloid is

$Y$ in the given sequence of reactions is
$P_4 + x NaOH + y H_2O \xrightarrow{CO_2} X + z NaH_2PO_2$
$X + CuSO_4 \rightarrow Y + H_2SO_4$

What happens when white phosphorus is heated with concentrated $NaOH$ solution in an inert atmosphere of $CO_{2}$?

Assertion: $NO$ and $NO_2$ both are paramagnetic gases.
Reason: $NO$ gas is responsible for the Brown ring test.

Vedclass Test Series

Exam Paper Generator

Online Exam Module