Answer
Correct option is (b) polar covalent bond.
Work Step by Step
In molecules and compounds, the atoms are held together by attractive forces called chemical bonds. Based on the type and strength of the attractive force, the chemical bonds are categorized into different types.
Ionic bonding: It is the interaction between ions of opposite charges. For example, sodium cation Na+ and chlorine anion cl- interact to form NaCl. An Ionic bond is not sharing of electrons. Hence, the option a is incorrect.
A covalent bond in which both the atoms share an equal number of electrons, and both the atoms have equal electronegativity. Therefore, option c is not correct.
Since option b is the only correct answer, option d which is all of the above is also incorrect.
A covalent bond is formed when two atoms share electrons between them, to attain stable configuration. Covalent bond that is partially displaced toward the electronegative atom. There is an unequal sharing of electrons.
Hence, option (b) is correct.
