Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Consider four configurations of ${\mathrm{B}}_2$ and select correct statements(s)-

(I) $\sigma 1{\mathrm{s}}^2,{\sigma }^{\ast }1{\mathrm{s}}^2,\sigma 2{\mathrm{s}}^2,{\sigma }^{\ast }2{\mathrm{s}}^2,\sigma 2{\mathrm{px}}^2$

(II) $\sigma 1{\mathrm{s}}^2,{\sigma }^{\ast }1{\mathrm{s}}^2,\sigma 2{\mathrm{s}}^2,{\sigma }^{\ast }2{\mathrm{s}}^2,\pi 2{\mathrm{p}}_y^2$

(III) $\sigma 1{\mathrm{s}}^2,{\sigma }^{\ast }1{\mathrm{s}}^2,\sigma 2{\mathrm{s}}^2,{\sigma }^{\ast }2{\mathrm{s}}^2,\pi 2{\mathrm{px}}^1=\pi 2{\mathrm{p}}_y^1$