The ionisation energies for B.Tl and In ...

The ionisation energies for `B.Tl` and In are X.Y and ZK cal/mol respectively. Choose the correct relationship between them-

`Z gt X = Y`

`X gt Y gt Z`

`X lt Y lt Z`

`X lt Y lt gt Z`

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The correct Answer is:

`B gt In lt Tl`
`X gt Y gt Z`

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