---
type: LearningResource
title: "Complete Guide to Chemical Compounds: Common Names, Scientific Names & Formulas 2025"
canonical: "https://www.easy2crack.com/study-materials/science/complete-guide-chemical-compounds-common-names-M6P3NRQ2"
subject: Science
format: null
free: true
updated: null
tags: ["study-material", "notes", "science"]
---
# Complete Guide to Chemical Compounds: Common Names, Scientific Names & Formulas 2025

Understanding chemical compounds and their common names is crucial for students preparing for competitive exams like SSC, Railways, UPSC, and engineering entrance tests. This comprehensive guide covers the most important chemical compounds that frequently appear in examinations.

Key Features:

- 100+ Essential Compounds - Complete list of chemicals with their common names, scientific names, and molecular formulas
- Exam-Focused Content - Specifically curated for Indian competitive exams based on previous year questions
- Easy Memorization - Organized in a user-friendly format for quick learning and revision
- Current & Relevant - Updated for 2025 with compounds commonly asked in recent examinations
- Mobile-Friendly - Optimized for studying on-the-go with responsive design
- Quick Reference - Perfect for last-minute revision before exams
- Industry Context - Aligned with India's growing chemical sector (valued at $250 billion)
- Academic Standards - Follows IUPAC nomenclature while emphasizing practical common names

| Common Name | Chemical Name | Chemical Formula |
| --- | --- | --- |
| Black Lead | Graphite | C |
| Dry Ice | Solid Carbon Dioxide | CO₂ |
| Heavy Water | Deuterium Oxide | D₂O |
| Bleaching Powder | Calcium Oxychloride | Ca(OCl)Cl |
| Washing Soda | Sodium Carbonate | Na₂CO₃.10H₂O |
| Plaster of Paris | Calcium Sulphate Hemihydrate | CaSO₄.½H₂O |
| Marsh Gas | Methane | CH₄ |
| Water Gas | Carbon Monoxide + Hydrogen | CO + H₂ |
| Producer Gas | Carbon Monoxide + Nitrogen | CO + N₂ |
| Laughing Gas | Nitrous Oxide | N₂O |
| Common Salt | Sodium Chloride | NaCl |
| Caustic Soda | Sodium Hydroxide | NaOH |
| Caustic Potash | Potassium Hydroxide | KOH |
| Lunar Caustic | Silver Nitrate | AgNO₃ |
| Blue Vitriol | Copper Sulphate | CuSO₄.5H₂O |
| Green Vitriol | Ferrous Sulphate | FeSO₄.7H₂O |
| White Vitriol | Zinc Sulphate | ZnSO₄.7H₂O |
| Oil of Vitriol | Sulphuric Acid | H₂SO₄ |
| Epsom Salt | Magnesium Sulphate | MgSO₄.7H₂O |
| Gypsum | Calcium Sulphate | CaSO₄.2H₂O |
| Hypo | Sodium Thiosulphate | Na₂S₂O₃.5H₂O |
| Chloroform | Trichloromethane | CHCl₃ |
| Calomel | Mercurous Chloride | HgCl |
| Sand | Silicon Dioxide | SiO₂ |
| Quick Lime | Calcium Oxide | CaO |
| Slaked Lime | Calcium Hydroxide | Ca(OH)₂ |
| Hydrolith | Calcium Hydride | CaH₂ |
| Fool's Gold | Iron Pyrites | FeS₂ |
| Horn Silver | Silver Chloride | AgCl |
| Chinese White | Zinc Oxide | ZnO |
| Litharge | Lead Oxide | PbO |
| Dead Gas | Carbon Monoxide | CO |
| Aqua Fortis | Nitric Acid | HNO₃ |
| Muriatic Acid | Hydrochloric Acid | HCl |
| Milk of Magnesia | Magnesium Hydroxide | Mg(OH)₂ |
| Aqua Regia | Conc. HNO₃ + Conc. HCl (1:3) | HNO₃ + 3HCl |
| Brine | Concentrated Sodium Chloride Solution | NaCl + H₂O |
| Glauber's Salt | Sodium Sulphate | Na₂SO₄.10H₂O |
| Mosaic Gold | Stannic Sulphide | SnS₂ |
| Potash Alum | Potassium Aluminium Sulphate | K₂SO₄.Al₂(SO₄)₃.24H₂O |
| Pearl Ash | Potassium Carbonate | K₂CO₃ |
| Smelling Salt | Ammonium Carbonate | (NH₄)₂CO₃ |
| DDT | Dichlorodiphenyltrichloroethane | C₁₄H₉Cl₅ |
| Rust | Hydrated Iron Oxide | Fe₂O₃.xH₂O |
| Grain Alcohol | Ethyl Alcohol | C₂H₅OH |

Chemical Compounds Reference Guide 2025

Essential for SSC, Railways, UPSC, and other competitive exams

SSC CGL

Railways

UPSC

Banking

State PSC

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