Which of the following does NOT happen when we smell an aroma? O The senses of smell and taste work together. O A chemical in the air triggers a response in a receptor in the nose. O The receptors in the nose identify the aroma before sending nerve impulses to the brain. Nerve impulses travel to the brain and are interpreted as a smell.​

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.  

c. orbital shape i hope this is correct