Metals and Non-Metals is one of the highest-scoring Chemistry topics in RRB Group D — predictable, fact-based, and entirely covered by NCERT Class 10. Yet most aspirants lose marks here by confusing exceptions like graphite (a non-metal that conducts electricity) or mercury (a metal that is liquid at room temperature).
RRB specifically targets these exceptions because they separate prepared candidates from those who only know general rules. Knowing the standard properties is not enough — you must know which elements break them.
This guide covers the important questions and property distinctions RRB repeats most, so you walk into the exam knowing exactly what to expect.
🎯 Quick Answer (30-Second Read)
- Metals and Non-Metals typically contributes 2–3 MCQs per RRB Group D Chemistry paper
- Mercury is the only metal that is liquid at room temperature — a direct MCQ favourite
- Graphite is the only non-metal that conducts electricity — tested almost every cycle
- The reactivity series (activity series) of metals determines displacement reactions — know the top five metals
- NCERT Class 10 Science Chapter 3 covers the complete scope of this topic
Source: RRB Group D Official Syllabus — indianrailways.gov.in
Key Properties RRB Tests: Metals vs Non-Metals
The Standard Properties Table
| Property | Metals | Non-Metals |
|---|---|---|
| Physical state | Solid (except Mercury) | Solid, liquid, or gas |
| Conductivity | Good conductors | Poor conductors (except Graphite) |
| Lustre | Shiny | Dull (except Iodine) |
| Malleability | Malleable and ductile | Brittle |
| Reaction with acid | Produce hydrogen gas | Generally do not react |
Source: NCERT Class 10 Science, Chapter 3 — Metals and Non-Metals
Exceptions You Must Memorise
Priya from Bhopal scored 33/35 in RRB Group D General Science (2023) by building a separate list of just the exceptions — she treated every exception as a guaranteed MCQ rather than a footnote.
The Reactivity Series — RRB's Displacement Question Source
The reactivity series ranks metals from most reactive to least reactive. RRB tests it through displacement reaction MCQs: "Can iron displace copper from copper sulphate solution?" Yes — because iron is higher in the series than copper.
📌 The key rule: A metal higher in the series displaces a metal lower in the series from its salt solution. Gold and silver are at the bottom — they do not react with dilute acids, which is why they are used in jewellery.
People Also Search For
What type of questions are asked in the RRB Group D exam?
RRB Group D includes questions from General Science, Mathematics, Reasoning, and General Awareness. Most questions are objective type and based on basic concepts from NCERT level. The difficulty level is usually easy to moderate. Questions test speed, accuracy, and basic understanding. Practicing previous year papers helps in understanding the exam pattern.
What are the important topics in metals and nonmetals?
Important topics include physical and chemical properties, reactivity series, extraction of metals, and corrosion. You should also focus on differences between metals and nonmetals and their uses. Questions are mostly concept-based and direct. Regular revision and MCQ practice help in better understanding and scoring.
What are the important topics for RRB Group D reasoning?
Key topics include analogy, number series, coding-decoding, puzzles, syllogism, blood relations, and direction sense. Questions are generally easy but require logical thinking and speed. Regular practice improves accuracy and reduces solving time. Time management and mock tests are important for better performance.
What are metals and nonmetals questions for RRB Group D?
These questions focus on properties, reactions, and uses of metals and nonmetals. Topics like reactivity series, corrosion, and extraction are commonly asked. Most questions are simple and directly based on basic concepts. Practicing previous year questions helps improve accuracy and confidence.
What are RRB Group D analogy questions in reasoning?
Analogy questions test the relationship between two pairs of words or numbers. Candidates need to identify patterns and apply similar logic to find the correct answer. These questions are scoring but require quick thinking. Regular practice helps improve speed and accuracy in this section.
Conclusion: Your Next Step
Metals and Non-Metals for RRB Group D rewards aspirants who focus on the right details — exceptions to standard properties and the reactivity series cover most MCQs this chapter produces. Master the five exceptions, memorise the reactivity order of eight metals, and know the uses linked to specific properties. That is the complete preparation formula for this topic.
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