Which of the following pairs of compounds is isoelectronic and isostructural?

  • Option 1)

    BeCl2, XeF2

  • Option 2)

    Tel2, XeF2

  • Option 3)

    \text{IBr}_2^ - ,\,\text{XeF}_2

  • Option 4)

    IF3, XeF2

 

Answers (1)

In concept id

Valence bond theory ( VBT ) -

1.  It is formed by overlapping of valence shell atomic orbital of the two atoms having unpaired electron.

2.  There is maximum electron density between the bonding atoms

3.  Greater the overlapping of atomic orbital higher is the strength of chemical bond 

- wherein

 

 

Species Number of electron Structure
BeCl_2
XeF_2
38
72
Linear
Linear
TeI_2
XeF_2
158
72
Bent
Linear
IBr^-_2
XeF_2
124
72
Linear
Linear
IF_3
XeF_2
80
72
T-shaped
Linear

In this question in place of isoelectronic there showed be same number of valence electron.


Option 1)

BeCl2, XeF2

Incorrect

Option 2)

Tel2, XeF2

Incorrect

Option 3)

\text{IBr}_2^ - ,\,\text{XeF}_2

Correct

Option 4)

IF3, XeF2

Incorrect

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