4.Chemical Bonding and Molecular Structure
medium

किस प्रजाति की प्रकृति प्रतिचुम्बकीय है

A

$He_2^ + $

B

$H‌_2$

C

$H_2^ + $

D

$H_2^ - $

(AIEEE-2005)

Solution

(b) $\begin{array}{*{20}{c}}{}&{He_2^ + }&{{H_2}}&{H_2^ + }&{H_2^ – }\\{\sigma (1s)}&{\underline { \uparrow \downarrow } }&{\underline { \uparrow \downarrow } }&{\underline { \uparrow \,} }&{\underline { \uparrow \downarrow } }\\{\mathop \sigma \limits^* (1s)}&{\underline { \uparrow \,} }&{\underline {\,\,\,\,} }&{\underline {\,\,\,\,} }&{\underline { \uparrow \,} }\\{B.O.}&{\frac{1}{2}}&1&{\frac{1}{2}}&{\frac{1}{2}}\\\begin{array}{l}{\rm{Magnetic}}\\{\rm{nature}}\end{array}&{\rm{P}}&{\rm{D}}&{\rm{P}}&{\rm{P}}\end{array}$

($P$ = अनुचुम्बकीय (Paramagnetic), $D$ = प्रतिचुम्बकीय (Diamagnetic))

Standard 11
Chemistry

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