25 Questions MCQ Test Science & Technology for UPSC CSE - Test: Metals & Non-metals
Test: Metals & Non-metals for UPSC 2023 is part of Science & Technology for UPSC CSE preparation. The Test: Metals & Non-metals questions and answers have been
prepared according to the UPSC exam syllabus.The Test: Metals & Non-metals MCQs are made for UPSC 2023 Exam. Find important
definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Metals & Non-metals below.
Solutions of Test: Metals & Non-metals questions in English are available as part of our Science & Technology for UPSC CSE for UPSC & Test: Metals & Non-metals solutions in
Hindi for Science & Technology for UPSC CSE course. Download more important topics, notes, lectures and mock
test series for UPSC Exam by signing up for free. Attempt Test: Metals & Non-metals | 25 questions in 25 minutes | Mock test for UPSC preparation | Free important questions MCQ to study Science & Technology for UPSC CSE for UPSC Exam | Download free PDF with solutions
By which reaction metal is obtained from metal oxide ?
Detailed Solution for Test: Metals & Non-metals - Question 2
The method used to extract metals from the ore in which they are found depends on their reactivity. For example, reactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide.
Which of the following metals is extracted only by electrolysis?
Detailed Solution for Test: Metals & Non-metals - Question 8
The method used to extract metals from the ore in which they are found depends on their reactivity.
For example, reactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide.
Which of the following metals does not displace H2 gas from dilute HCl or dilute H2SO4?
Detailed Solution for Test: Metals & Non-metals - Question 9
Copper doesn't react with dilute sulphuric acid, Liberating hydrogen because copper is lower in the electromotive series than hydrogen. A more reactive element can displace a less reactive element from its salt solution.
The property of metal by which it can be drawn into wires is called
Detailed Solution for Test: Metals & Non-metals - Question 10
The property of metal by which it can be drawn into wires is called ductility. Ductility is the ability of a material to be stretched or drawn out into a thin wire without losing its strength or breaking. It is an important property of metals and is commonly observed in materials like copper, silver, and gold. Explanation:
Ductility: Ductility is the property of a material to be stretched or drawn into a wire without breaking or losing its strength. It is an important property of metals and is a result of the metallic bond between atoms in a metal. Metals with high ductility can be easily shaped into various forms, including wires.
Conductivity: Conductivity refers to the ability of a material to conduct electrical or thermal energy. While metals generally have high conductivity, it is not directly related to their ability to be drawn into wires.
Malleability: Malleability is the property of a material to be easily hammered or rolled into thin sheets without breaking. While malleability and ductility are both properties of metals, they refer to different ways in which metals can be shaped.
Decorating: Decorating is not a property related to the ability of metals to be drawn into wires. It is unrelated to the physical properties of metals.
In conclusion, the correct answer is C: Ductility. Ductility allows metals to be drawn into wires without breaking, making it an essential property for various applications in industries such as electrical wiring and telecommunications.
Which of the following metals will not react with oxygen,even when heated very strongly in air?
Detailed Solution for Test: Metals & Non-metals - Question 11
Silver do not react with oxygen even at high temperatures as they are less reactive and are placed below the reactivity series. Hence they are called noble metals. But silver fades after some months or years due to its tendency to react with sulphur in air forming their sulphides
Which of the following is true for calcination of a metal ore?
Detailed Solution for Test: Metals & Non-metals - Question 12
During calcination, the organic matter, moisture, volatile impurites such as carbon dioxide and sulphur dioxide escape from the ore. This makes ore porous.
Thus option A is correct.
During calcination, hydrated salts lose their water of crystallization. Al2O3.2H2O→Al2O3+2H2O
Thus option C is correct.
An iron nail is dipped in copper sulphate solution. It is observed that
Detailed Solution for Test: Metals & Non-metals - Question 14
When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore, copper sulphate solution colour changes from blue to light green .
The non-metal which is a liquid at room temperature–
Detailed Solution for Test: Metals & Non-metals - Question 17
The non-metal which is a liquid at room temperature: Answer: Bromine (D) Explanation: - Non-metals are elements that lack metallic characteristics and are typically poor conductors of heat and electricity. - Among the given options, the non-metal that is a liquid at room temperature is Bromine (Br). - Here's a breakdown of the properties of each of the options: - Oxygen (O) is a gas at room temperature. - Fluorine (F) is a gas at room temperature. - Sulphur (S) is a solid at room temperature. - Bromine (Br) is a liquid at room temperature. - Bromine is the only non-metal that exists in a liquid state at normal room temperature and pressure. - It has a boiling point of 58.8°C and a melting point of -7.2°C. - Bromine is a reddish-brown liquid with a strong odor and is highly reactive. - It is commonly used in the production of flame retardants, dyes, and pharmaceuticals. - It is also used as a disinfectant and in water treatment. - Therefore, the correct answer is D: Bromine.
Which of the following metal react vigorously with oxygen–
Detailed Solution for Test: Metals & Non-metals - Question 22
Reactivity of Metals with Oxygen Metallic elements can react with oxygen to form metal oxides. The reactivity of metals with oxygen varies, with some metals reacting vigorously while others react slowly or not at all. In this case, we are looking for the metal that reacts vigorously with oxygen. Options: A: Zinc B: Magnesium C: Sodium D: Aluminium Detailed To determine which metal reacts vigorously with oxygen, let's consider the reactivity series of metals. The reactivity series is a list of metals arranged in order of their reactivity, with the most reactive metal at the top. 1. The reactivity series from most reactive to least reactive is: potassium, sodium, calcium, magnesium, aluminium, zinc, iron, tin, lead, hydrogen, copper, silver, gold, platinum. 2. Sodium (option C) is higher in the reactivity series than both zinc (option A) and aluminium (option D). 3. Therefore, sodium reacts more vigorously with oxygen compared to zinc and aluminium. Conclusion: The metal that reacts vigorously with oxygen is sodium (option C).
Which metal is used for making foils used in packing of food materials –
Detailed Solution for Test: Metals & Non-metals - Question 23
Metal Used for Making Foils for Packing Food Materials: Aluminium Explanation: The metal commonly used for making foils used in packing food materials is aluminium. Here's why: - Lightweight: Aluminium is a lightweight metal, making it ideal for packaging materials as it adds minimal weight to the overall package. - Non-toxic: Aluminium is non-toxic and does not react with food, ensuring the safety of the packaged food. - Barrier properties: Aluminium foils have excellent barrier properties, preventing moisture, oxygen, and other contaminants from entering the packaged food, thus preserving its freshness and extending its shelf life. - Heat conductivity: Aluminium is an excellent conductor of heat, allowing for quick and efficient heating or cooling of the packaged food. - Flexibility: Aluminium foils are highly malleable and can be easily shaped, folded, or wrapped around food items, providing a secure and tight seal. - Cost-effective: Aluminium is abundantly available and relatively affordable compared to other metals, making it a cost-effective choice for packaging foils. Overall, aluminium's lightweight, non-toxic nature, excellent barrier properties, heat conductivity, flexibility, and cost-effectiveness make it the preferred metal for making foils used in packing food materials.
Detailed Solution for Test: Metals & Non-metals - Question 24
The most abundant Element on the earth's crust is oxygen followed by silicon.. But both of them are Non-metals. But, silicon is followed by Aluminium which is a METAL (about 8.23%) further followed by iron. So the most abundant metal found on the Earth is Aluminium.
The second most abundant metal present in the crust of the earth is–
Detailed Solution for Test: Metals & Non-metals - Question 25
Iron is the second most abundant Metal in the earth's crust. It is found in the molten form inside the crust of the earth. In the presence of air and moisture, it forms it's oxide but the alloy of steel is widely used as pipes, it is unreactive in nature.
In this test you can find the Exam questions for Test: Metals & Non-metals solved & explained in the simplest way possible.
Besides giving Questions and answers for Test: Metals & Non-metals, EduRev gives you an ample number of Online tests for practice
Find all the important questions for Metals & Non-metals at EduRev.Get fully prepared for Metals & Non-metals with EduRev's comprehensive question bank and test resources.
Our platform offers a diverse range of question papers covering various topics within the Metals & Non-metals syllabus.
Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered.
The questions are designed to challenge you and help you gain confidence in tackling the actual exam.
Maximize your chances of success by utilizing EduRev's extensive collection of Metals & Non-metals resources.
Metals & Non-metals MCQs with Answers
Prepare for the Metals & Non-metals within the UPSC exam with comprehensive MCQs and answers at EduRev.
Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus.
Access the best books, study materials, and notes curated by toppers to enhance your preparation.
Stay updated with the exam date and receive expert preparation tips and paper analysis.
Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.
Online Tests for Metals & Non-metals Science & Technology for UPSC CSE
Practice with a wide array of question papers that follow the exam pattern and syllabus.
Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement.
Access detailed solutions and explanations for each test to enhance your understanding of concepts.
With EduRev's Online Tests, you can build confidence, boost your performance, and ace Metals & Non-metals with ease.
Join thousands of successful students who have benefited from our trusted online resources.