The diagram that follows shows the highest energy occupied MOs of a neutral molecule CX, where X is in the same row of the periodic table of C

Then, the correct statements regarding this molecule is/are

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The elements X is nitrogen.

$π 2 p$ orbitals contribute more to the bond strength

Atomic orbitals of element X contribute more to the bonding than the atomic orbitals of carbon

The molecule is stabilized by losing an electron and destabilized by gaining an electron

answer is A, B, C.

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Detailed Solution

A) The diagram has five electrons in MOs formed by 2p atomic orbitals. Carbon has two 2p electrons, So X must have three 2p electrons. Therefore X is nitrogen
B) Since $π 2 p$ orbitals are lower in energy than $σ 2 p M O, π 2 p$ MOs contribute more to the bonding
C) Atom X is N which is more electronegative than C. The atomic orbitals of more electronegative ‘N’ are slightly lower in energy than those of carbon. So the bonding orbitals have more nitrogen character and contribute more to the bonding.
D) When electron is removed bond order decreases so stability decreases. If electron is gained bond order increases, stability increases