Explain with example how the physical state of reactants and products can be shown in chemical equation

In chemical equations, we usually state the state symbol behind each of the reactants and products. We use (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solutions.

For example, here's an equation of sodium reacting with water:

2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

As you can see, each behind each substance is the state symbol. This is how we presents physical states in chemical equations.

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.