NCERT JEE (Main) FLEX | Chapter-wise & Topic-wise NCERT Objective Question Bank-Physics, Chemistry & Mathematics (Set of 3 Books)

The key idea behind this series is:

NCERT → JEE Main PYQs → chapter/topic practice → detailed solutions → revision

Oswaal describes FLEX as a question bank built around the latest NCERT Textbook and NCERT Exemplar, with actual JEE Main questions from 2011–2026.

1. 📖 NCERT-focused preparation

This is the biggest distinguishing feature.

Each MCQ is tagged to the relevant NCERT textbook and NCERT Exemplar, including a page indicator. That means you can trace a question back to the underlying NCERT concept instead of treating the PYQ as an isolated problem.

This is particularly valuable for Chemistry, where NCERT-based preparation is extremely important for JEE Main.

2. 🗂️ Chapter-wise + topic-wise PYQs

Instead of giving you something like:

2026 → 2025 → 2024 → 2023 → ...

the FLEX books organize practice around chapters and topics.

For example, after studying a particular Physics chapter, you can immediately solve the relevant JEE Main questions from that topic.

That makes the books especially useful during chapter-by-chapter preparation, rather than only during final revision.