Can I create multiple Experiments per page?

Short answer: no, but you can create more than 1 Scenario. 

Elaborate answer: When you are optimising a page on your website, you might want to test more than two variations of an item. Say you want to test three different texts for a call-to-action button. You might be inclined to create two Experiments: one AB test with the original text, and a variation, and then a second AB test with the original text and a variation.

This will, however, cause severe problems. Normally, Convertize sends visitors who enter an Experiment to one of the Experiment’s versions. When you create more than one experiment for the same page, it is unclear which experiment your visitors should enter. As a result, one experiment will override the other.

So what should I do instead?

Instead, you should create one Experiment for one page with multiple scenarios. In this way, each visitor who enters the page, will enter your Experiment. They are directed to one of that experiment’s versions.