Atom & Molecule - 2 : Chemistry By Rahul Sir || Rakshak Batch RWA || UP Home Guard Bharti 2025 ATOM & MOLECULE (परमाणु और अणु) - 2 : ECONOMICS BY SHUSHANT SIR || RAKSHAK BATCH RWA || UP HOME GUARD BHARTI 2025 UP Home Guard Science Class 2025 | Atom & Molecule (परमाणु और अणु) | UPP Home Guard Chemistry Class 02 | Chemistry By Rahul Sir Welcome to UP Home Guard Science Class 2025! In today’s session (Class 02), Rahul Sir explains one of the most important topics in Chemistry — Atom & Molecule. This chapter is highly relevant for UP Police Home Guard, UPP Home Guard, and other competitive exams.