If you have a clog, skip the bleach and try these proven methods:
Using bleach in a clogged toilet can lead to several complications: does bleach unclog toilet
No, bleach is not an effective drain cleaner. While it is an excellent disinfectant and whitener, it lacks the properties necessary to dissolve the organic matter typically responsible for toilet clogs. If you have a clog, skip the bleach
If you want a chemical solution, buy an specifically labeled for toilets or septic systems. These use bacteria and enzymes to digest organic waste over a few hours. They are slow but safe and effective. These use bacteria and enzymes to digest organic
For under $20 at a hardware store, buy a toilet auger. You feed the curved metal cable down the drain and crank the handle. It physically breaks up or retrieves the clog (like a stuck toy or too much paper). This is the most effective DIY tool.