Here’s a detailed feature breakdown of (popularly known as the "Orange Book" for JEE/NEET), highlighting what makes it distinctive. Key Features of M.S. Chauhan Organic Chemistry | Feature Category | Specific Features | |----------------|-------------------| | Primary Focus | Problem-solving & mechanism mastery for JEE Main, JEE Advanced, and NEET | | Question Volume | ~4,500+ carefully graded problems (one of the largest in any single organic book) | | Core Strength | Exceptionally strong on reaction mechanisms (not just rote memorization) | 1. Unique Problem-Grading System (ABCD) The book's most famous feature. Every chapter has problems split into four levels :