When 2.40 moles of sodium react with 5.90 moles of chlorine gas in the reaction shown above, how many moles of sodium chloride are produced ?

First we look at the chemical reaction:

2 Na + Cl₂ → 2 NaCl

Now we should see which is the limiting reagent, so we construct the following reasoning:

if        2 moles of Na reacts with 1 mole of Cl₂

then   2.4 moles of Na reacts with X moles of Cl₂

X = (2.4 × 1) / 2 = 1.2 mole of Cl₂ (way lower that the available quantity of chlorine).

So the limiting reagent is sodium, and from here we can calculate the number of moles of NaCl produced.

if        2 moles of Na produces 2 moles of NaCl

then   2.4 moles of Na produces Y moles of NaCl

Y = (2.4 × 2) / 2 = 2.4 moles fo NaCl (sodium chloride)

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.  

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >