1.

The lattice energies of the oxides of Mg, Ca, Sr and Ba follow the order-

Answer»

`CaOlt SrOlt BaOlt MgO`
`CaOgt BaOgt SrOgt MgO`
`MgO GT CaO gt SrOgt BAO`
`BaO gt SrO gt CaOgt MgO`

ANSWER :C


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