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In a planar tetra - atomic molecule, X...

In a planar tetra - atomic molecule, `XY_(3)`,X is at the centroid of the equilateral triangle formed by the atoms , Y. If the X-Y bond distance is `1Å`, what is the distance between the centres of any two Y atoms ?

A

`1//sqrt3` Å

B

`sqrt2` Å

C

`sqrt3` Å

D

`1//sqrt2` Å

Text Solution

Verified by Experts

The correct Answer is:
C

`(BE)/(BC)=cos 30^(@)=sqrt(3)/(2)`
Distance between the centres of two B atoms `2xxBE=sqrt(3)overset(@)A`
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