Question

(C-Cl) bond in $C{{H}_{2}}=CH-Cl$ (vinyl chloride) is stabilised in the same way as in:
a.) Benzyl chloride
b.) Ethyl chloride
c.) Chlorobenzene
d.) Allyl chloride

Answer 1

Hint: When we draw two or more than two Lewis dot structures for a molecule, which differs only in the locations of the electrons then we draw the resonance structure for those molecules. The actual structure is the resonance hybrid of all of the structures.

Complete step by step answer:
- Lewis dot structures also known as Lewis electron-dot formulas. It uses dots arranged around the chemical symbol for an element to represent the valence electron configuration of the atoms in the element. we should follow the octet rule in filling electrons in the outer orbital. So, we will form covalent bonds between two atoms which are formed by sharing electrons from one electron from each atom. The resonance structures are made by the delocalisation of electrons.
- Vinyl chloride i.e. $C{{H}_{2}}=CH-Cl$ contains pi electrons due to which vinyl chloride shows resonance. Thus, we can say that the C-Cl bond in vinyl chloride is stabilised by resonance.
Similarly, in chlorobenzene, due to resonance the bond in the compound is stabilized.
The resonating structure of vinyl chloride is mentioned below:

The correct option is option “C” .

Note: In general, when we have to solve the question from organic chemistry be careful with the inductive and resonance effect as in many of the cases resonance effect is stronger and in many cases inductive effect is stronger as compared to resonance effect.