This particular book is a true exam companion for students intended to minimize exam load and help in strategic exam preparation. The book bridges the gap between classroom teaching and exam requirements of the students. The book not only delivers classroom learning but at the same time caters to the exam requirements by providing the students smart and hand-picked strategic answers for all possible questions. Students are now more empowered in overcoming exam fears and approach the same in a much confident way. All chapter's unit wise have been written in the form of two, five- and ten-marks possible question-answer form thus providing a exam preparation booster to the students. The book shall also serve as a solved question-bank helping students for preparation of various competitive exams as well.