In reaction one, we have a methane molecule or a methane compound dissociating or donating NH plus atom and also creating a methion anion. So this method has a net charge of negative one because it has a lone pair of electrons, non bonding electrons found on the carbon. So let's look at reaction two in reaction to our acetylene, dissociates into an H plus atom, and it also creates an anion called acetylene. Now, this acetylene also has a net charge of negative one because it also has a lone pair of non bonding electrons on this first carbon. So which one of these reactions is more likely to occur? In other words, which one of these acids is a better acid?