Valence Bond Theory

In which of the following molecules both phenyl rings are not coplanar ?

Which of the following plot represents potential energy of a pair of nuclei as a function of their separation:

Which one of the following does not have ${\mathrm{sp}}^2$ hybridised carbon ?

The correct statement for the structure of ${\mathrm{P}}_4{\mathrm{O}}_{10}$ is

The number of sigma and pi bonds in ethyne molecule are respectively,

Which among the following represents zero overlap? 

Which of the following has ${\mathrm{p}}_{\mathrm{\pi }}-{\mathrm{d}}_{\mathrm{\pi }}$ bonding?

Propyne molecule contains $6$ sigma and _____ pi bonds.

The sum of number of sigma and pi bonds formed between two carbon atoms in $\mathrm{C}\mathrm{a}{\mathrm{C}}_2$ are:

Explain why covalent bonds are directional in nature ?

Explain the directional properties of bonds ?

Number and type of bonds between two carbon atoms in CaC2 are

Which of the following is not tetrahedral in shape?

The number of $\mathrm{\sigma }$ and $\mathrm{\pi }$ bonds in allyl isocyanide are

The total number of sigma and pi bonds present in the given anthracene molecule are:

How does oxygen molecule form?

Among the following statements  which is false?

$\mathrm{p\pi }–\mathrm{d\pi }$ bonding is not present in the molecule :

Assertion $\left(\mathrm{A}\right)\mathrm{ }:$ Six unpaired electrons present in gaseous Cr atoms.

Reason $\left(\mathrm{R}\right)$ Half filled $\mathrm{s}-$orbital has greater stability.