34 atoms of carbon (C) react with 22 molecules of hydrogen gas (H2). How many molecules of methane (CH4) will be formed, and what will be left over? A. 17 molecules of methane formed, 5 molecules of hydrogen left over
B. 11 molecules of methane formed, 23 molecules of carbon left over
C. 5 molecules of methane formed, 24 atoms of carbon and 2 molecules of hydrogen left over
D. 22 molecules of methane formed, 12 atoms of carbon left over

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.