The maximum number of hydrogen bonds formed by a water molecule in ice is
$4$
$3$
$2$
$1$
${{\rm{H}}{{\rm{e}}_2}}$ molecule is not possible.
Which of the following statement is correct for peroxide ion
$A.$ has completely filled $\pi$ antibonding molecular orbitals
$B.$ is diamagnetic
$C.$ has bond order one
$D.$ is isoelectronic with Neon
Use molecular orbital theory to explain why the $Be_{2}$ molecule does not exist.
Use molecular orbital theory to explain why the $\mathrm{Be}_{2}$ Molecule does not exist.
Bond order of $C_2$ vapour is :