NDA Part B General Knowledge - Chemistry Practice Test 100 MCQs
NDA Part B General Knowledge - Chemistry Practice Test NDA Part B General Knowledge - Chemistry Practice Test Targeted 100 MCQ Practice Module focusing on: Structure of Atom, Acids, Bases & Salts; Metals & Non-metals, Elements, Compounds & Mixtures; Carbon & its Compounds, Oxidation & Reduction; Air, Water, Fertilizers, Soap, Glass & Everyday Chemistry . Select your answers and click Submit Assessment Answers at the bottom to calculate your total score and review explanations. 📢 Stay Updated on Competitive Exam Materials! Follow the Official WhatsApp Channel: Join Channel Here | 💬 Contact Admin Direct SECTION I: Structure of Atom, Acids, Bases & Salts [Questions 1 to 25] 1. Who discovered the electron in 1897 through cathode ray tube experiments? Ernest Rutherford J.J. Thomson James Chadwick Niels Bohr ...