Question

In covalent compounds, the bond formed is due to sharing of electrons.
[A] True
[B] False

Answer 1

Hint: Atoms undergo covalent bonding with similar atoms. They do not dissociate in a solvent like ionic compounds i.e. the covalent bond is not broken like ionic bonds. Ionic bond is formed by complete transfer of electrons and thus gives rise to oppositely charged ions in solution.

Complete step by step answer:
To answer this we have to understand the term covalent bonding.
Atoms which do not have their valence shells fulfilled forms covalent bonding with a similar atom to complete its octet and hence gain stability. A chemical covalent bond is made by the sharing of electrons between two similar atoms. There are differing types of covalent bonds like single bond, covalent bond and triple bond.
Common examples include carbon monoxide (CO), IBr etc.
Generally, there are three types of covalent bonding that we all know about. They are-
Single bond- When there's a sharing of two electrons between a pair of atoms, it gives rise to a sigma bond between the atoms. The sigma bond thus formed is the single bond.
Double bond- When four electrons are shared by the 2 atoms, it gives rise to a sigma bond and a pi-bond which we know as a double bond.
Triple bond- When six electrons are shared by the two atoms, there exist one sigma and two pi-bonds thus forming a triple bond.
As the number of covalent bonds between two atoms increases, the bond length decreases and the bond strength increases. This means that a triple bond is stronger than a double bond which is in turn stronger than a single bond.
We can see from the above discussion that a covalent bond is formed by sharing of electrons thus the given assertion is correct.

Therefore, the correct answer is option [A] True

Note: In order to form a covalent bond, the atoms need to be in a specific arrangement which will allow the overlapping between the orbitals. It is difficult to break a sigma bond because sigma bonds are stronger than pi- bonds. A sigma bond is formed by the overlapping of atomic orbitals along the axis and pi-bond is formed by overlapping of two lobes of the atomic orbitals.