Which of the following statements is not corr | vedclass

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(C) $1$. Pauling's electronegativity $(EN)$ scale is based on bond energy differences.$2$. Allred-Rochow $EN$ is defined as $0.359 	imes (Z_{eff} / r

Vedclass · Accepted Answer

Mulliken $EN$ is the geometrical mean of $I.P.$ and $EA$

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(C) $1$. Pauling's electronegativity $(EN)$ scale is based on bond energy differences.$2$. Allred-Rochow $EN$ is defined as $0.359 	imes (Z_{eff} / r^2) + 0.744$,so it increases with increasing $Z_{eff}$.$3$. Mulliken $EN$ is defined as the arithmetic mean of ionization potential $(I.P.)$ and electron affinity $(EA)$,i.e.,$EN_M = (I.P. + EA) / 2$. It is not the geometrical mean.$4$. Electronegativity generally decreases on moving down a group.

Which of the following statements is not correct?

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