RRB Nursing & Non Nursing 2025 | RRB Nursing Superintendent PYQs | Most Expected MCQ Part 14

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General Science for RRB Staff Nurse Exam 2026 | Chemistry - Important Chemical Compounds | P
By Sunny Ma'am

Welcome to Part 14 of the RRB Staff Nurse Exam 2026 General Science Series! 🧪 In this session, Sunny Ma'am continues the Chemistry module, focusing on Important Chemical Compounds and their daily life applications. This lecture simplifies complex chemical formulas and reactions into exam-oriented points essential for RRB, AIIMS, and other nursing competitive exams.
We cover key topics including the composition of common substances like Cement, Gunpowder, and Baking Soda. We also explore the properties of various Acids (Muriatic, Formic), Gases (CNG, LPG, Laughing Gas), and the phenomenon of Allotropy.

🔍 Key Topics Covered in this Session:
Chemical Compounds & Formulas:
Industrial Chemicals: Composition of Cement (Limestone) and Gunpowder (Potassium Nitrate).
Common Acids: Muriatic Acid
Chloroform: Chemical name (Trichloromethane) and uses.
Organic Chemistry Concepts:
Allotropy: Definition and examples (Diamond, Graphite).
Combustion: Yellow flame (Unsaturated) vs. Blue flame (Saturated).
Reactivity: Why saturated hydrocarbons are less reactive.
Chemical Volcano: The role of Ammonium Dichromate.
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⏱️ Timestamps:
00:00 - Introduction & Session Overview
04:31 - Definition of Allotropy
08:52 - Combustion of Unsaturated Compounds
11:37 - Reactivity of Saturated Compounds
13:24 - Chemical Name of Chloroform
15:53 - Main Ingredient in Cement
19:36 - Slaked Lime vs Quick Lime
21:36 - Laughing Gas (Nitrous Oxide)
24:31 - Formula of Muriatic Acid
28:23 - Acid Present in Ant Bite
33:50 - Composition of CNG and LPG
37:00 - Chemical Volcano Compound
44:13 - Chemicals in Gunpowder
46:22 - Sulfur Dioxide Uses
49:27 - Heating Baking Powder Reaction
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