NDA Chemistry Syllabus: In the NDA exam, the Chemistry section in the General Ability Test includes 15 questions, totalling 60 marks. Here are some expert tips to prepare for the Chemistry part of the exam. Learn how to prepare for the NDA Chemistry syllabus with this post to aim for scoring at least 10 questions from this section. We’ll also cover important topics in the NDA Chemistry syllabus based on the previous year’s papers.
NDA Chemistry Syllabus 2024
The NDA Chemistry Syllabus, crafted by the UPSC, covers a wide range of topics such as physical and chemical processes, elements, and compounds. This section of the NDA exam evaluates your grasp of fundamental chemistry concepts and various substances. When preparing, focus on the following topics from the Chemistry section:
- Carbon and its different forms
- Atom and its structure
- Acids, bases, and salts
- Metals and non-metals
- Preparation and properties of hydrogen, oxygen, and carbon dioxide
- Atomic equivalence
- Physical and chemical changes
- Oxidation and reduction
- Mole concept
- P block elements
- Properties of air and water
- Elements, mixtures, and compounds
- Molecular weights
- Valency
- Chemical formulas and equations
- Laws of Chemical Combination
- Preparation of soap, glass, ink, paper, cement, etc.
- Types of fertilizers
- States of Matter
- Dual nature of matter
- VSEPR theory
- Heat transfer (reaction rate, factors affecting reaction rate, rate expression, reaction mechanism)
- Various types of solutions
- Laws of thermodynamics
- Hydrocarbons
- Redox reactions in aqueous solutions
- Colligative and periodic properties
- Mendeleev’s periodic table
- Types of elements
Chemical Formulae and Equations in NDA Chemistry Syllabus
Here are condensed notes of chemical formulae and equations from the NDA Chemistry syllabus for easy reference during last-minute revisions:
| Chemical Formula | Chemical Name | Common Name |
| Al2O3 | Aluminum Oxide | Alumina |
| HNO3 | Nitric Acid | Aqua Fortis |
| NaHCO3 | Sodium Bicarbonate | Baking Soda |
| NaCl | Sodium Chloride | Brine / Rock Salt |
| NH4OH | Ammonium Hydroxide | Ammonia Water |
| CaOCl2 | Calcium Hypochlorite | Bleaching Powder |
| Al2O3.2H2O | Di-Hydrate Aluminum Oxide | Bauxite |
| CaCO3 | Calcium Carbonate | Limestone |
| MgSO4.7H2O | Hepta-Hydrate Magnesium Sulphate | Epsom Salt |
| CaF2 | Calcium Fluoride | Fluorspar |
Below are the general formulas for various series of hydrocarbons:
| Series | General Formula |
| Alkanes | CnH2n+2 |
| Alkenes | CnH2n |
| Alkynes | CnH2n-2 |
| Alcohol and Ether | CnH2n+2O |
| Aldehyde and Ketone | CnH2nO |
| Acid and Ester | CnH2nO2 |
Balancing of Chemical Equations in NDA Chemistry Syllabus
Understanding how to balance chemical equations is crucial in NDA Chemistry Syllabus. In a balanced equation, the number of atoms for each element on the left side (reactants) must equal the number on the right side (products). This requires adding coefficients as needed.
For example, consider the equation:
N2 + H2 → NH3
In this equation, the reactants are N2 and H2, and the product is NH3. However, it’s not balanced because there are 2 nitrogen atoms on the left side and only 1 on the right. Similarly, there are 2 hydrogen atoms on the left and 3 on the right. To balance it, we add coefficients. By adding the coefficient 3 before H2 and 2 before NH3, we achieve a balanced equation where there are 2 nitrogen atoms and 6 hydrogen atoms:
N2 + 3H2 → 2NH3
Understanding this balancing concept is important, and it’s simpler to grasp the underlying principle rather than memorizing specific equations.
Also Read: NDA Preparation Tips 2024: Subject-wise Tips and Tricks
Preparation and Properties of Hydrogen in NDA Chemistry Syllabus 2024
In NDA Chemistry Syllabus, understanding the preparation and properties of hydrogen, carbon dioxide, and oxygen is essential. Various methods can be used to prepare hydrogen, each employing a basic formula. Similarly, learning about carbon dioxide and oxygen involves understanding their compounds, chemical equations, and processes.
Methods for preparing hydrogen include:
Method 1: Reaction of dilute strong acid with metals like zinc
Zn + H2SO4 → ZnSO4 + H2
Method 2: Reaction between an amphoteric metal and a strong base
2Al + 6NaOH + 6H2O → 2Na3 [Al(OH)6]3 + 3H2
Method 3: Electrolysis of water
2 H2O → 2H2 + O2
Key properties of hydrogen include:
- It is a colorless and odorless gas.
- It plays a crucial role in many acid-base reactions.
- It is widely used in fossil fuel processing and ammonia production.
- Its melting point is -259.2°C, and its boiling point is -252.87°C.
Also Read: NDA Exam Syllabus 2024
Tips to Prepare Fundamental Concepts of NDA Chemistry Syllabus 2024
- Understand the concepts: Try to really get the concepts instead of just memorizing them.
- Organize Your Study Timer: Allocate specific periods to each topic and concentrate on one at a time for better comprehension.
- Keep it Simple: Many former candidates have found the questions in the NDA Chemistry exam to be less challenging compared to those in their X and XII board exams. Focus on mastering the basics of each topic accordingly.
- Know the Basics: Make sure you know about elements, compounds, and mixtures.
Also Read: NDA Preparation 2024: Tips to Crack NDA Exam
NDA Chemistry Syllabus Frequently Asked Questions (FAQs)
Q1. How many chemistry questions are there in the NDA exam?
Ans. Approximately 15 questions are asked in the chemistry section of the NDA examination.
Q2. How are marks distributed in the NDA exam?
Ans. The NDA written exam totals 900 marks. Mathematics constitutes 300 marks, while General Ability comprises 600 marks.
Q3. Which topics are important to cover for the NDA Chemistry section?
Ans. Candidates should focus on Various Chemical Reactions and their Products, Organic Chemistry, Physical Chemistry, IUPAC Nomenclature, and direct questions from the periodic table for the NDA Chemistry section.
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Conclusion
In summary, mastering the NDA Chemistry syllabus is pivotal for excelling in the General Ability Test. With 15 questions worth a total of 60 marks, it’s essential to prepare thoroughly. Remember to understand the concepts rather than just memorizing them. Organize your study time efficiently, focusing on one topic at a time for better comprehension.
Many past candidates have found the exam questions to be simpler than those in their X and XII board exams, emphasizing the importance of mastering the basics of each topic. Ensure you have a solid grasp of elements, compounds, and mixtures. By following these expert tips and covering the crucial topics outlined in the NDA Chemistry syllabus, you’ll be well-prepared to tackle the exam and achieve success in your NDA journey.