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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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PRADEEP-CHEMICAL BONDING AND MOLECULAR STRUCTURE-ANALYTICAL QUESTIONS AND PROBLEMS WITH ANSWERS/SOLUTIONS
  1. Out of MgO and CaO, which one is more hard and why ?

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  2. Why is solubility of MgCl(2) much greater than that of MgF(2) ?

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  3. Why is NaCl a bad conductor of electricity in the solid state?

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  4. Out of sigma and pi- bonds, which one is stronger and why?

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  5. Out of CS(2) and OCS which have higher dipole moment and why?

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  6. Indicate4 whether the following statement is TRUE or FALSE. Justify yo...

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  7. Which is more polar and why, CO(2) or N(2)O?

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  8. Why AlF(3) is a high melting solid wheareas SiF(4) is a gas ?

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  9. Why NF(3) pyramidal but BF(3) is triangular planar ?

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  10. Why is that in the SF(4) molecule, the lone pair of electrons occupies...

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  11. Why bond angle in H(2)O is nearly 104.5^(@) but that in H(2) S , it i...

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  12. Explain why N(2) has a greater bond dissociation energy than N(2)^(+) ...

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  13. Can we have a diatomic molecule with its ground state moleculer orbita...

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  14. Out of H and H(2) , the latter has higher first ionization energy whil...

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  15. Given reason for the following : H(2)^(+) and H(2)^(-) ions have t...

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  16. KHF(2) exists while KHCl(2) does not. Explain.

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  17. When we move from HF to HCl , the boiling point sharply but on moving...

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  18. Out of o-nitrophenod and p-nitrophenol, which has higher boiling point...

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  19. Why glucose, fructose, sucrose etc. are soluble in water through they ...

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  20. Using the VSEPR theory, identify the type of hybridisation and draw th...

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