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`
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The correct Answer is:
C
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