Arrange the following in increasing lattice energy.
BeCO3,MgCO3,CaCO3,SrCO3,BaCO3
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Solution
The increasing order of lattice energy is BaCO3<SrCO3<CaCO3<MgCO3<BeCO3. With increase in the size of alkaline earth metal on moving down the group, the lattice energy decreases.