Why would the molecule CH5 not be possible?

Select one:

a. Carbon and hydrogen do not form chemical bonds.

b. Carbon can only bond with up to four other atoms.

c. Hydrogen only bonds with one other atom.

d. There is no oxygen present in the molecule.

The correct answer is b. Carbon can only bond with up to four other atoms.

Explanation:

Carbon atom's atomic number is 6 because it has 6 electrons. So two electrons are present in the innermost shell and 4 electrons are present in the outermost shell. Therefore carbon needs 4 electron to complete its octet.

As the valency of carbon atom is four it can accept only four electrons from other atoms. Because giving four-electron or taking four electrons is very difficult therefore it usually obtains electrons by sharing. So it makes covalent bonds with other atoms.

So carbon atom can only form 4 bonds because of its valency, therefore, the correct answer is b. Carbon can only bond with up to four other atoms.