Q1. CuCO3. The properties which must be considered while categorising elements as metals and non-metals are thoroughly covered in the chapter, Metals and Non-metals.The chapter throws light on the physical properties of metals and non-metals like metallic lustre, hardness, … Explain. This reaction is used to join railway tracks or cracked machine parts and is known as the thermit reaction. (ii) Moist litmus paper   –   becomes red. Aluminium oxide and zinc oxide are amphoteric in nature. Question 2 i. Sodium and calcium form stable hydrides on reacting with hydrogen. This turn red litmus paper to blue. NCERT Solutions For Class 10 Science Chapter 10 – Light Reflection and Refraction. There 92 well known naturally occurring minerals of which 70 are metals and rest 20 are the non-metals. Therefore, when zinc is added to a solution of iron (II) sulphate, then the greenish colour of iron (II) sulphate solution fades gradually due to the formation of colourless zinc sulphate solution and iron metal is deposited on zinc. For example, bronze is an alloy of copper and tin. Which of the following pairs will give displacement reactions? Does every mineral have a definite and a fixed composition? 10. Hence they are very effective in cleaning tarnished copper vessels. [CBSE2011] is the best conductor of heat. You are given a hammer, a battery, a bulb, wires and a switch. Explain why these sour substances are effective in cleaning the vessels. (ii) Metals replace hydrogen from acids and form salts. Required fields are marked *, The differences between metals and non metals based on their physical properties are –. (iii) Gangue Reactivity Series: List of metals in order of their decreasing activities. Are you one of those who finds science fascinating? The ions present in Magnesium oxide compound (MgO) are magnesium ions Mg2+ and oxide ions (O2-). Answer: Silver is the best conductor of electricity. A student took four test tubes I, II, III and IV containing aluminium sulphate, copper sulphate? There are many instances when bright students miss golden opportunities because of lack of proper guidance and are not able to perform optimally despite deep interest and willingn… 14. The displacement will take place in the following cases : Question 2 Give an example of a metal which NCERT Solutions for Class 10 Science Chapter 3 – Metals and Non-metals. NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions InText Questions; NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area InText Questions ; NCERT Solutions for Class … With their years of experience, they have answered the questions in the right format. 5. 3. NCERT Solutions Class 10 Hindi Chapter 3 साना-साना हाथ जोड़ि. Answer: Science NCERT Grade 10, Chapter 3, Metals and Non-metals deals with the uses of metals and non-metals in daily life. Solution: NCERT offer solutions in a stress-free and understanding way, so you understand the concepts in a structured format. i. is a liquid at room temperature. Answer: (a) Applying grease State two ways to prevent the rusting of iron. The element is likely to be By applying Oil/grease on the surface of iron objects as it will prevent the iron surface to get in contact with air consisting of moisture. Dronstudy provides you with the best NCERT solutions for class 10 science. At cathode Na+ + e– →Na This compound is also soluble in water. Metallic oxides of zinc, magnesium and copper were heated with the following metals. Use of Lucidly Clear Language The questions of the Ch 3 Eco Class 10 have been drafted in an easy-to-understand language. NCERT Solutions for Class 10 Science Chapter 3 Metals and non-metals helps students in learning concepts given in the textbook in detail. (iii) Silver Aqua regia (By volume, this contains 3 parts of concentrated hydrochloric acid and 1 part of concentrated nitric acid) is the solution, which is used to sparkle the bangles like new, but their weight will be reduced drastically. (d) Green solution of FeSO4 slowly turns colourless (d) AgNO3 solution and copper metal. Question 2 NCERT Solutions for Class 10 Maths Chapter 3 is the ideal, easy step by step guide for mathematics. Carbon in the form of graphite conducts electricity, as there is a free electron in each carbon atom, which moves freely in between the hexagonal layers. You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Answer: copper turns green on its surface due to the formation of basic copper carbonate Cu(OH) 2. Answer: Question 16. What chemical process is used for obtaining a metal from its oxide? You are given a hammer, a battery, a bulb, wires and a switch. Physical Properties of Metals & Non-Metals. Students can save their time and fasten their revision which is very effective for exam preparation. NCERT Solutions for Class 10 Maths Chapter 3 is the ideal, easy step by step guide for mathematics. At TopperLearning, we make it easier for you to grasp the concepts in order to answer questions through our NCERT Solutions for Class 10 Biology. Calcium oxide is soluble in water to give Calcium Hydroxide. Question 1 Give an example of a metal which : (i) is a liquid at room temperature. (b) MgCl2 solution and aluminium metal. (ii) Show the formation of Na2O and MgO by the transfer of electrons. For e.g. (i) B is the most reactive metal because it gives displacement reaction with iron (II) sulphate. (iii) Gangue : The unwanted impurities like sand, rocky material, earth particles, lime stone, mica, etc in an ore are called gangue. Examples:  Lead oxide – PbO and Aluminium oxide – Al2O3. Write equations for the reactions of At Teachoo, we have solved all the NCERT Questions, Examples from inside the book, Questions from Inside the Book, and some very important Extra Questions.These Extra Questions have been made fromNCERT ExemplarPast Write the chemical reaction when iron reacts with dilute H2SO4. Answer: (iii) In Na2O, ions present are Na+ and O2-. NCERT Solutions for Class 10 Science Chapter 3 Intext Questions. (ii) Sodium NCERT Solutions for Class 10 Science Chapter 3 Metals and non-metals helps students in learning concepts given in the textbook in detail. As it is easier to reduce metal oxides to metal, prior to reduction, metal sulphides and carbonates must be converted to oxides. Ores mined from the earth are usually contaminated with large amounts of impurities such as soil, sand, etc., called gangue. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?Solution:Trait B appears to own arisen earlier because it is gift in larger fraction of the population. Answer: 15. The process of extracting metal from ore and refining it is called metallurgy. The descriptive language is straightforward and easy to understand. (a) I (iii) With chlorine, metals form chlorides which are electrovalent. Write the chemical reaction that takes place? (b) In test tube II, because Fe is more reactive than copper but less reactive than Al arid Zn. What is chemical process used for obtaining a metal from its oxide? NCERT CBSE Solutions for Class 10 Science Chapter 3 . (i) Metals form basic oxides or amphoteric oxides. That’s why aluminium is used to make cooking utensils. NCERT Solutions for Class 10 Political Science Chapter 3 – Democracy and Diversity. Metals and non metals: Properties of metals and non-metals, reactivity series, Formation and properties of ionic compounds, Basic metallurgical processes, corrosion and its prevention. Solution: Copper is used to make hot water tanks and not steel (an alloy of iron) because copper does not reacts with either water or steam whereas iron reacts with steams to corrode the tank. Differentiate between metal and non-metal on the basis of their chemical properties. These metals are highly reactive & are obtained by electrolytic reduction. Students who are planning to build their career stream in the field of medicine can refer to this article as biology plays a major role in the medical field. Gold and platinum are found in the free state in nature. ii. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. Al, Fe, Zn react with steam to from metal hydroxide & H2. ferrous sulphate and zinc sulphate solutions respectively. Formation of Sodium oxide (b) Copper reacts with CO2 present in air and forms a green coating on its surface due to the formation of basic copper carbonate [CuCO3.Cu(OH)2] as: Metals and Non-Metals Question 2 Answer: Light green     Zinc sulphate(Colourless). stainless steel (alloy of Fe. Primary Sidebar. An element reacts with oxygen to give a compound with a high melting point. NCERT Solutions for Class 10 Science Chapter 12 Electricity answers of intext questions given on Page 200 or Page 202 or Page 209 or Page 213 or Page 216 or Page 218 or Page 220 or Exercises in English Medium. Answer: (c) Aluminium forms a non-reactive layer of aluminium oxide on its surface. Reason- HNO3 is strong oxidizing agent & oxidized H2 to water. How do metals react with solutions of other Metal Salts, Extracting Metals in the Middle of the activities Series, Extracting Metals towards the top of the Activity Series. But steel corrodes easily. Non-metals break into pieces when hammered. Amphoteric oxides are the one which reacts with both acids and bases to form salt and water. Question 1 A more reactive metal can displace a less reactive metal from its oxide. NCERT Books chapter-wise Solutions (Text & Videos) are accurate, easy-to-understand and most helpful in Homework & Exam Preparations. (c) Student B These compounds are made up of positive and negative ions. These experiments can be helpful to demonstrate the malleability and electric conductivity of the metals and non-metals, Iron can be prevented from rusting by coating the surface of the iron with rust proof paints. Oxides which show basic and acidic properties are called amphoteric oxides. Explain why the surface of some metals acquires a dull appearance when exposed to air for a long time. (iii) Metal B is the most reactive because it displaces iron from its salt solution. (i) Minerals Protective metal oxide layer prevents the metal from further oxidation such as found in Al, Zn, Pb etc. (a) Al Answer: Sodium is highly reactive. (i) iron with steam. i. Which topics are covered in the Physics NCERT solutions? This is why ionic compounds have high melting points. Solution: When non-metals combine with oxygen it forms either acidic or neutral oxides. (b) (i) and (iii) Are you one of those who finds science fascinating? Sodium metal is kept immersed in kerosene to prevent their reaction with oxygen, moisture and carbon dioxide of air. At some places, minerals contain a very high percentage of a particular metal and the metal can be profitably extracted from it. These acids dissolve the coating of copper oxide or basic copper carbonate present on the surface of tarnished copper vessels and make them shining red-brown again. Explain why these sour substances are effective in cleaning the vessels. (a) Metals can be beaten into thin sheets with a hammer without breaking. 2. Question 11 NCERT Solutions for Class 10 Science Chapter 1 - Chemical Reactions and Equations. State two ways to prevent the rusting of iron. Class 10 Metals and Non Metals NCERT Book Page Number: 40. Solution: Zinc is more reactive (more electro positive) than iron. Answer: The ionic compounds are made up of positive and negative ions. 24 H2O, Bauxite Al2O3.2H2O (d) All the above. (b) S(s) + O2(g) —> SO2(g), Multiple Choice Questions (MCQs) [1 Mark each]. Therefore it displaces iron from its salt solution. (b) CuSO4 – blue; FeSO4 – dark green Zinc is more reactive than iron. Candidates must possess a detailed knowledge of the NCERT Solutions based on the syllabus to get the good results in the board exams. When metals are connected into circuit using a battery, bulb, wires and switch, current passes through the circuit and the bulb glows. This is why the experts always follow the latest CBSE format to frame the solutions so that students can follow it and make a good impression on the … The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions. These CBSE NCERT Solutions will not only help in your Class 10 exam preparation but also in clearing other competitive exams. When metals are heated with oxygen, they form ionic oxides which are basic in nature and form bases on dissolving with water. Metal C is still less reactive because it can displace only silver from its salt solution and metal D is the least reactive because it cannot displace any metal from its salt solution. There will be full syllabus exams for class 10 from the academic year 2019 onward. The colour of ferrous sulphate is pale green, which turns colourless. Ni, & Cr), amalgam (alloy of Hg), brass (alloy of Cu & Zn) etc. ii. Filed Under: CBSE Tagged With: Metals and Non-metals NCERT Solutions, Metals and nonmetals Class 10, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals, RD Sharma Class 11 Solutions Free PDF Download, NCERT Solutions for Class 12 Computer Science (Python), NCERT Solutions for Class 12 Computer Science (C++), NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 12 Micro Economics, NCERT Solutions for Class 12 Macro Economics, NCERT Solutions for Class 12 Entrepreneurship, NCERT Solutions for Class 12 Political Science, NCERT Solutions for Class 11 Computer Science (Python), NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 11 Entrepreneurship, NCERT Solutions for Class 11 Political Science, NCERT Solutions for Class 11 Indian Economic Development, NCERT Solutions for Class 10 Social Science, NCERT Solutions For Class 10 Hindi Sanchayan, NCERT Solutions For Class 10 Hindi Sparsh, NCERT Solutions For Class 10 Hindi Kshitiz, NCERT Solutions For Class 10 Hindi Kritika, NCERT Solutions for Class 10 Foundation of Information Technology, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 9 Foundation of IT, PS Verma and VK Agarwal Biology Class 9 Solutions, Class 10 Metals and Non-metals Important Questions, Metals and Non-metals NCERT Exemplar Solutions, Metals and Non-metals Class 10 Extra Questions, Chapter 1 Chemical Reactions and Equations, Chapter 5 Periodic Classification of Elements, Chapter 10 Light Reflection and Refraction, Chapter 13 Magnetic Effects of Electric Current, Chapter 16 Management of Natural Resources, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, Periodic Classification of Elements Class 10, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. 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