In polymeric (BeCl_2)_n,there are | vedclass

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(A) In the polymeric structure of $(BeCl_2)_n$,each $Be$ atom is bonded to four $Cl$ atoms.Two $Cl$ atoms are terminal,forming normal $2$-centre-$2$-e

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three-centre four-electron bonds

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(A) In the polymeric structure of $(BeCl_2)_n$,each $Be$ atom is bonded to four $Cl$ atoms.Two $Cl$ atoms are terminal,forming normal $2$-centre-$2$-electron $(2c-2e)$ covalent bonds.The other two $Cl$ atoms act as bridges between $Be$ atoms.These bridging $Be-Cl-Be$ bonds are $3$-centre-$4$-electron $(3c-4e)$ bonds,similar to those found in diborane,but involving different electron counts.Therefore,the structure contains both $2c-2e$ bonds and $3c-4e$ bonds.

In polymeric $(BeCl_2)_n$,there are

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