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Which out of 'CH3 F' and. 'CH3 Cl' has a...

Which out of 'CH_3 F' and. 'CH_3 Cl' has a higher dipole moment and why?

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MgO. has higher lattice energy because .Mg^(2+). ion.carries two units of positive charge and is smaller than .Na^+. ion. The lattice enthalpy is grẹater for ions of higher charge and smaller radii.
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