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? Well, it turns out from experimental results, we know that acetylene is a better acid. In fact, acetylene is ten to 30 times better at donating an H plus atom than this methane compound. So why is that?