Bond Parameters

The least stable canonical structure among these is

For phenol, which of the following resonating structure is the most stable?

${\text{C}\text{H}}_2=\text{CH}-\text{C}\text{H}=\text{C}\text{H}-{\text{CH}}_3$ is more stable than ${\text{CH}}_3-\text{CH}=\text{C}=\text{CH}-{\text{CH}}_3$ because

Among these canonical structures, the correct order of stability is

$\left(\text{I}\right){\text{CH}}_2=\text{CH}-\text{CH}={\text{CH}}_2$

$\left(\text{I}\text{I}\right){\stackrel{\ominus }{\text{C}}\text{H}}_2-\text{CH}=\text{CH}-\stackrel{\oplus }{\text{C}}{\text{H}}_2$

$\left(\text{I}\text{I}\text{I}\right){\stackrel{\oplus }{\text{C}}\text{H}}_2-\text{CH}=\text{CH}-\stackrel{\ominus }{\text{C}}{\text{H}}_2$

Among, these, which are canonical structures?

Bond formation is :

In the compound, , the  $C2-C3$ bond is of the type –

Which of the following compounds, hydrocarbons, has the lowest dipole moment?

Which of the following compounds are dipolar?

Which of the following compounds is polar ?

Is it possible for the non-polar molecules to have polar bonds?

Explain why :

$\mathrm{H}-\mathrm{F}$ is more polar than $\mathrm{H}-\mathrm{Cl}$ bond.

Which of the following compounds are dipolar?

Amongst $\mathrm{LiCl}, \mathrm{RbCl}, {\mathrm{BeCl}}_2 \text{and} {\mathrm{MgCl}}_2$, the compounds with the greatest and the least ionic character, respectively, are.

Among the following, the most polar molecule is :

Polar covalent compounds ionize in their solution.

_____ covalent compounds dissolve in water.

Define polar and non-polar covalent compounds. Give an example of each.