Question

Which contains both polar and nonpolar covalent bonds?
A.$N{H_4}Cl$
B.$HCN$
C.${H_2}{O_2}$
D.$C{H_4}$

Answer 1

Hint: Polarity, when all is said in done, alludes to the actual properties of mixes, for example, boiling point, melting points, and their solubilities. The polarity of bonds basically emerges from the demonstration among particles and molecules with different electronegativities.

Complete Answer:
Polarity of bonds can be defined as "A state or a condition of a particle or an atom having positive and furthermore negative charges, particularly if there should arise an occurrence of magnetic or an electrical pole."
Polar Molecules: A polar particle is generally formed when the one end of the atom is said to have more number of positive charges and though the far edge of the atom has negative charges, making an electrical shaft. At the point when an atom is said to have a polar bond, at that point the centre of the negative charge will be one side, while the focal point of positive charge will be in the distinctive side. The whole atom will be a polar particle.
Non-Polar Molecules: A particle which doesn't have the charges present toward the end because of the explanation that electrons are finely distributed and those which evenly counteract each other are the non-polar atoms. In an answer, a polar particle can't be blended in with the non-polar atom.
${H_2}{O_2}$ contains both polar and nonpolar covalent bonds. In the structure of ${H_2}{O_2}$, there are three sigma bonds, two among $O$ and $H$ and one bond is between two $O$ atoms. The two connections among $O$ and $H$ are polar while that between two $O$ iotas are non-polar.

So, the correct answer is option C.

Note: The bond or the sub-atomic polarities rely on the electronegativities of the particles or the atoms. An atom is essentially supposed to be either a polar particle, non-polar particle or ionic atom.