{"ok":true,"q":"Hydrogen","n":88,"results":[{"id":"class_11\/chemistry\/chapter_01_hydrogen","title":"Chapter 1 — Hydrogen","class_num":11,"subject":"chemistry","subject_label":"Chemistry","summary":"This chapter introduces Hydrogen — the simplest and most abundant element in the universe (electronic configuration 1s1) — and examines its unique position in the periodic table, p","topic":"","anchor":""},{"id":"class_08\/vasant\/paani_ki_kahani","title":"पानी की कहानी","class_num":8,"subject":"vasant","subject_label":"Hindi (Vasant)","summary":"'पानी की कहानी' पानी की एक बूँद की आत्मकथा है। जब लेखक एक पेड़ के नीचे बैठा होता है, तब एक बूँद उसके हाथ पर गिरती है और अपनी कहानी सुनाने लगती है। वह बताती है कि वह मनुष्य से भी पु","topic":"","anchor":""},{"id":"class_10\/science\/chapter_12_sources_of_energy","title":"Chapter 12 — Sources Of Energy","class_num":10,"subject":"science","subject_label":"Science","summary":"Introduction: Energy is essential for all human activities and economic development. Chapter \"Sources of Energy\" (Class 10 Science, NCERT) presents a clear classification of energy","topic":"Hydrogen and Fuel Cells","anchor":"topic-11"},{"id":"class_11\/chemistry\/chapter_02_s_block_elements","title":"Chapter 2 — S Block Elements","class_num":11,"subject":"chemistry","subject_label":"Chemistry","summary":"This chapter (s-Block Elements) in Chemistry – Part II for Class 11 introduces Group 1 (alkali metals) and Group 2 (alkaline earth metals). It explains their electronic configurati","topic":"Reactions with Halogens and Hydrogen","anchor":"topic-24"},{"id":"class_11\/chemistry\/chapter_02_structure_of_atom","title":"Chapter 2 — Structure Of Atom","class_num":11,"subject":"chemistry","subject_label":"Chemistry","summary":"This chapter introduces the historical development and modern understanding of the atom — from early atomic models to the quantum mechanical model. It explains experimental evidenc","topic":"Bohr model of hydrogen atom","anchor":"topic-5"},{"id":"class_11\/chemistry\/chapter_03_classification_of_elements_and_periodicity_in_properties","title":"Chapter 3 — Classification Of Elements And Periodicity In Properties","class_num":11,"subject":"chemistry","subject_label":"Chemistry","summary":"Introduction: This chapter introduces the systematic arrangement of elements in the Periodic Table and explains the recurrence (periodicity) of chemical and physical properties. It","topic":"Position and Peculiarities of Hydrogen and Helium","anchor":"topic-15"},{"id":"class_12\/physics\/chapter_04_atoms","title":"Chapter 12 — Atoms","class_num":12,"subject":"physics","subject_label":"Physics","summary":"This chapter introduces the atomic structure as revealed by early 20th-century experiments and the first successful quantum model of the atom (Bohr model). Beginning with Rutherfor","topic":"Bohr model of the hydrogen atom","anchor":"topic-5"},{"id":"class_12\/chemistry\/chapter_06_aldehydes_ketones_and_carboxylic_acids","title":"Chapter 8 — Aldehydes Ketones And Carboxylic Acids","class_num":12,"subject":"chemistry","subject_label":"Chemistry","summary":"This chapter introduces the chemistry of carbonyl-containing compounds — aldehydes, ketones and carboxylic acids — emphasising structure, nomenclature, methods of preparation, phys","topic":"","anchor":""},{"id":"class_11\/chemistry\/chapter_05_hydrocarbons","title":"Chapter 5 — Hydrocarbons","class_num":11,"subject":"chemistry","subject_label":"Chemistry","summary":"This chapter introduces hydrocarbons — organic compounds made of carbon and hydrogen — and develops the foundational ideas needed for understanding organic chemistry. It explains c","topic":"","anchor":""},{"id":"class_07\/science\/chapter_05_acids_bases_and_salts","title":"Chapter 5 — Acids Bases And Salts","class_num":7,"subject":"science","subject_label":"Science","summary":"This chapter introduces Acids, Bases and Salts — fundamental chemical classes that students encounter in daily life and in the laboratory. It explains what acids and bases are (wit","topic":"","anchor":""}]}