Which of the following best describes a possible carbon compound?
a) one carbon atom forms a quadruple bond with another carbon atom.
b) one carbon atom forms a double bond with an oxygen atom and two single bonds with two hydrogen atoms.
c) one carbon atom forms five single bonds with five hydrogen atoms.
d) one carbon atom forms a triple bond with another carbon atom and a double bond with an oxygen atom.

Option (b) is the correct answer.

Explanation:

Atomic number of carbon is 6 and its electronic distribution is 2, 4. That means it requires 4 more electrons to complete its octet.

For example, when one carbon atom forms a double bond with an oxygen atom and two single bonds with two hydrogen atoms then it gains 4 electrons through covalent bonding, that is, sharing of electrons.

Hence, out of the given options, option (b) best describes a possible carbon compound.

a. hope i'm right

explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.