What occurs when the surface of a large body of water is heated by the sun and the water at the depths remains cool because of lack of sunlight? a. a pycnocline b. a halothermocline c. a halocline d. a thermocline

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.