Imagine a drop of oil in water. if you add a surfactant, explain how the surfactant molecules organize themselves around the oil drop.

Explanation:

Surfactant are the substances that help in reducing the surface tension between two liquids. These liquids can be either a gas and a liquid or a liquid and a solid.

Therefore, when a surfactant is added to a mixture of oil and water then hydrophilic molecules of surfactant will surround the water molecules whereas hydrophobic molecules will surround the oil molecules.

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.  

thats how its supposed to be