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Out of MgO and CaO, which one is more ha...

Out of MgO and CaO, which one is more hard and why ?

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To determine which compound, MgO or CaO, is harder, we need to analyze their lattice energies. The hardness of ionic compounds is directly proportional to their lattice energy, which can be influenced by the charges of the ions and the sizes of the ions involved. ### Step-by-Step Solution: 1. **Understanding Lattice Energy**: Lattice energy is the energy released when one mole of an ionic crystalline compound is formed from its gaseous ions. It is a measure of the strength of the forces between the ions in an ionic solid. 2. **Factors Affecting Lattice Energy**: ...
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Knowledge Check

  • Which one is hard base ?

    A
    `Ag^(+)`
    B
    `Cr^(3+)`
    C
    `I_(2)`
    D
    `F^(-)`

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