RRB Chemistry previous papers | Non metals & Non-Metallic compounds| phosphorus & Halogen | Part 34 Скачать
Periodic table of elements | characteristics of s, p, d, f, block elements | Ncert chemistry part 4 Скачать
periodic table of elements | Earlier attempts at the classification of elements| 10th chemistrypart1 Скачать
Human eye | Refraction through a glass prism, Dispersion Of light | Ncert 10th physics part 2 Скачать
Carbon & Its compounds | Ehanol & Ethonoic acid, soap, detergents| Ncert 10th chemistry last part 6 Скачать
Metals & Non-Metals | Extraction & Refining of Metals, Alloy | Ncert 10th chemistry last part5 Скачать
Metals & Non - Metals | Chemical properties of metals & non-metals | Ncert 10th chemistry part 2 Скачать
Refraction of Light | image formation by concave lens & mirror formulae | Ncert 10th phy last past4 Скачать
Refraction of Light | snell's law, terms related to convex and concave lenses | 10th Ncert part 2 Скачать
Acids, Bases and Salts | Caustic soda and water of crystallisation | Ncert 10th chemistry last part6 Скачать
Reflection of Light | Different types of image formation in concave and convex mirrors | part 3 Скачать
Structure of the Atom | Atomic and Mass number, Valence electrons & Isotopes | last part 3| Ncert Скачать
Atoms and molecules | atoms, symbols, ions and ionic compounds | part 2 | 9th Ncert chemistry Скачать
Is matter around us pure part 3(Solubility, suspension, Emulsion, physical, chemical changes) Скачать
RRB group d science previous papers topic wise part 11(Momentum and distance and displacement) Скачать