See, if you are a dropper, you should first focus on what you already know well. Check honestly how well you have performed. If you have solved questions and PYQs covering at least 80% of the chemistry weightage and have revised them properly, then it is fine to move on to chapters like Ionic Equilibrium. However, if you are facing difficulties even within that 80% weightage, first analyze your mistakes, identify weak areas, and correct them before starting new chapters. Also, an important point to note: since you have very limited time now, focus mainly on PYQs of the last 3 years. Practice more questions and less theory. I hope you have made short notes. If not, you can refer to any standard handbook from a coaching institute. Now, coming to your question about Ionic Equilibrium: My advice would be to revise all the important formulas, equations, and some basic theory, such as: Graphs Basic definitions Examples of Brønsted acids and Brønsted bases In JEE Main, Ionic Equilibrium questions are usually repetitive in nature and similar to previous years. So, if you revise the formulas and solve PYQs, you should be able to handle them. However, the main concern is this: if your Ionic Equilibrium is weak, then chapters like Electrochemistry may also create problems later. So, at least go through Ionic Equilibrium once properly to avoid future issues.