The book contains approximately 6,000 multi-level test questions with answers in all sections of the basic school chemistry course. The book takes into account the requirements for the knowledge of applicants when passing chemistry testing to the maximum extent. It is recommended for teachers and students of secondary schools, lyceums, gymnasiums, specialized classes, students of preparatory departments and courses. The book will provide invaluable assistance to those who independently prepare for passing competitive tests and testing in chemistry.