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(A) Electronegativity is the tendency of an atom to attract a shared pair of electrons.Based on the Pauling scale values:$I$. $H (2.20)$ and $P (2.19)

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$I, II$ and $III$

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(A) Electronegativity is the tendency of an atom to attract a shared pair of electrons.Based on the Pauling scale values:$I$. $H (2.20)$ and $P (2.19)$ have similar values.$II$. $Be (1.57)$ and $Al (1.61)$ have similar values.$III$. $N (3.04)$ and $Cl (3.16)$ have similar values.$IV$. $C (2.55)$ and $P (2.19)$ have different values.Thus,the pairs $I, II,$ and $III$ have approximately the same electronegativity values.

Among the following,the pairs of elements having approximately the same electronegativity values are:
$I$. $H$ and $P$
$II$. $Be$ and $Al$
$III$. $N$ and $Cl$
$IV$. $C$ and $P$

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Among the following,the pairs of elements having approximately the same electronegativity values are:$I$. $H$ and $P$$II$. $Be$ and $Al$$III$. $N$ and $Cl$$IV$. $C$ and $P$