This book has been written to CRACK COMPULSORY SECTION of 40 marks of class 9 ICSE chemistry syllabus. Made with an intense desire to strengthen chemistry concepts , this book has been categorised into 31 different types of questions for 31 days final preparation of class 9 chemistry. It covers all sorts of questions from all ICSE school question papers . Its special feature is it is fully solved so as to give students a clear concept as to how to write answers of questions related to : * What do you observe when * What happens when * Give balanced equations for * Define the following * Draw the following graph * Solve the following numericals * Identify – type questions ……….. and so on. A student can definitely upgrade his score by 90% after thoroughly practicing each type of question every day in 31 days!