You should score more then 150 marks in MHT CET to get good colleges.

To score good marks in MHT CET you should score good marks in each section. If your chemistry is weak you should work upon it. Try to clear your concepts for chemistry you can take help of your text book. Solve previous year questions to know the idea about the level of the questions.

You should focus on the important topics which carries more weightage in the exam. Solve as many as MCQs for your practice.

All the best for your preparation and exam!!