LIFE SCIENCE

Detailed explanation-1: -A polar covalent bond is a covalent bond in which the atoms have an unequal attraction for electrons and so the sharing is unequal. In a polar covalent bond, sometimes simply called a polar bond, the distribution of electrons around the molecule is no longer symmetrical.

Detailed explanation-2: -When electrons are shared unequally, they are more likely to be found near one atom than the other. As a result, the more electronegative atom to which electrons are more attracted will be slightly more negative than the other atom. Consequently, the less-electronegative atom will be somewhat positive.

Detailed explanation-3: -A Nonpolar Covalent Bond is created when atoms share their electrons equally. This usually occurs when two atoms have similar or the same electron affinity. The closer the values of their electron affinity, the stronger the attraction.

Detailed explanation-4: -In a polar covalent bond, the electrons are unequally shared by the atoms and spend more time close to one atom than the other.

Detailed explanation-5: -Polar covalent bonds result when electrons are unequally shared between atoms, while nonpolar covalent bonds result when electrons are more equally shared between atoms. The unequal sharing of electrons is due to the differences in the electronegativities of the two atoms sharing the electrons.