A diatomic molecular among the following species has only π π bonds according to Molecular Orbital Theory is - 1. Be2 2. O2 3. N2 4. C2 : Past Year (2019 onward - NTA Papers) MCQs

 

 Question:  100% NCERT covered from Particular Keyword.Explanations are 100% from NCERT | [Difficult level: Easy] From NCERT NEET 2019

A diatomic molecular among the following species has only $\pi$ bonds according to Molecular Orbital Theory is -

1.  Be2

2.  O2

3.  N2

4.  C2

Ans: 4.  C2

Diatomic

👉Physical Properties of Group 15 Elements:

All the elements of this group are polyatomic. Dinitrogen is a diatomic gas

while all others are solids. Metallic character increases down the group.

Nitrogen and phosphorus are non-metals, arsenic and antimony metalloids

and bismuth is a metal. This is due to decrease in ionisation enthalpy and

increase in atomic size. The boiling points, in general, increase from top to

bottom in the group but the melting point increases upto arsenic and then

decreases upto bismuth. Except nitrogen, all the elements show allotropy.

👉