Applied Chemistry-B|Super Important Questions 🔥🔥 Polytechnic 2nd sem CSE/AI/EE @SBTE_POLYTECHNIC_WAY

Skip from 26:31 to 30:13, because of some glitches it's not visible This video provides a comprehensive review of Applied Chemistry for engineering students, covering essential topics organized into five units. Each unit is explained with key concepts, formulas, and common exam questions. Key Units and Topics Covered: UNIT- 1. Atomic Structure and Chemical Bonding (0:31 - 19:12): Explains Bohr's Atomic Model and Hydrogen Spectrum (0:42-6:33). Covers the four Quantum Numbers and the electronic configuration of Sodium (6:34-10:43). Discusses foundational principles like Aufbau Principle, Pauli’s Exclusion Principle, and Hund’s Rule (10:51-15:42). Details the formation of ionic bonds in NaCl and CaCl2 (15:46-19:12). Includes a numerical example for De Broglie wavelength (19:13-22:06). UNIT- 2. Water Technology (22:07 - 36:58): Explains Hardness of Water (Temporary vs. Permanent) and methods for removal (22:11-25:13). Covers the EDTA method for determining water hardness (25:14-28:46). Details the Ion Exchange method for water softening (28:47-30:05). Differentiates between BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) (30:06-33:02). Provides numerical examples for calculating total hardness as CaCO3 (33:04-36:58). UNIT- 3. Metallurgy (37:00 - 42:07): Defines key terms: Ore, Gangue, Flux, and Slag (37:03-38:32). Outlines the five fundamental steps of metallurgy (38:33-39:32). Describes the extraction process of Copper from Copper Pyrites (39:33-41:30). UNIT- 4. Polymers and Solid State (42:11 - 51:53): Explains Addition and Condensation Polymerization (42:11-43:32). Details the Vulcanization of Natural Rubber (43:33-45:00). Distinguishes between Crystalline and Amorphous solids (45:01-47:48). Discusses unit cells (SC, BCC, FCC) and electrical properties via Band Theory (47:49-51:06). Introduces Bragg’s Law for X-ray diffraction (51:07-51:53). UNIT- 5. Electrochemistry (51:54 - 57:52): Covers Faraday’s Laws of Electrolysis and numerical applications (52:01-52:55). Explains the Daniel Cell and the Nernst Equation for EMF calculation (52:56-54:19). Describes the structure and functioning of Lead Storage Batteries (54:20-55:25). Discusses Corrosion types (Dry/Wet) and various prevention methods like painting and galvanization (55:26-57:52). polytechnic 2nd semester Applied Chemistry-B polytechnic second semester Applied Chemistry-B polytechnic 2nd sem Applied Chemistry-B important questions polytechnic second sem Applied Chemistry-B important questions