(b) All non-metals are ductile. Iron (ii) Electric wire C. Aluminium (iii) Wrapping food D. Aluminium (iv) Jewellery E. Copper (b) Immersion rods made up of metallic substances because metals are good conductors of heat and electricity. When a metal reacts with oxygen, the resulting oxide of the metal-. False. Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers Choose the correct option. Metals are good insulators of heat and electricity. (d) they cannot share electrons with chlorine atoms. The rest of these are non-metals. (a) Generally, non-metals react with acids. The metals which are solid in nature always have high melting and boiling points because they are closely packed and have high attraction. Top . They are often called semi-metals. Most of the metals in existence have the power to conduct electricity, unlike all non-metals. False. Answer 5. ( ) 2) Non-metals are brittle. Answer: is a basic oxide. E. Answer the following questions in short: 1. Match the following option: A. Students can solve NCERT Class 8 Science Chapter 4 Materials: Metals and Non-Metals Multiple Choice Questions with Answers to know . The type of questions that will be asked from NCERT Class 8 Science Unit 4 are displayed in the below provided NCERT Exemplar Class 8 Science Unit 4. It has a tendency to form an acid if combined with oxygen and hydrogen. Choose the correct answer 1. Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers by expert subject teacher for latest syllabus and examination. Non metals are those elements which have 4,5,6 or 7 valence electrons in their valence shell and they always gain electrons to form electronegative ions. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction. ( ) Answer: aluminium and iron. Question 4. Write the name of a metal which is found in liquid state at room temperature. Give reasons for the following: (a) Aluminium foils are used to wrap food items. (a) Aluminium foils are used to wrap food items. Q 2 Q 1.8 Q 3.1. They are silicon, boron, arsenic, antimony, germanium, tellurium and polonium. Name two metals which can be cut with a knife. NON-METALS 1) Non-metals are non-lustrous as they cannot shine. 2NO + O 2 2NO 2. Generally, metals are good conductors of heat and electricity but non-metals are poor conductors. Answer 17. 2. Ans. Answer: No, non-metals do not produce the ringing sound. 5. 13. Question 3: What do you understand by malleability? A metal which is liquid at room temperature. These are the basic differences between them. There is much to be learned when it comes to the properties of these two. (b) Immersion rods made up of metallic substances because metals are good conductors of heat and electricity. Answer. True. . Answer: The metals have the following properties: (a) Hardness, (b . Metals are (a) shiny (b) hard (c) sonorous (d) all of these Answer Question 2. 1. (c) Copper cannot displace zinc from its salt solution. done Materials : Metals and Non-metals Total Questions - 35 question_answer 1) How many electrons are generally present in metals in their valence shell? Video Explanation of Lesson Metals and Non-Metals Give reasons for the following. Ans. The metals, used in making the alloy 'german silver', are-. (ii) Non-metals are non-ductile i,e, they cannot be drawn into thin wires (iii) Non-metals are bad conductors of heat and electricity (iv) Non-metals are non-lustrous. Materials Metals And Non Metals Questions And Answers Question 7. Name some common non-metals used in our daily life. (b) Metals are good conductors of heat and electricity. (d) Metals react with acids to produce gas. Mark 'T' if the statement is true and 'F' if it is false. Non-metals can exist in all the three physical states: solid, liquid and gaseous. Example: aluminium foil and silver sheets used to decorate sweets. Answer: 6. Rust formed on iron objects is basic in nature. Gold (i) Thermometers B. Non-metals react with oxygen to from basic or neutral oxides False. True. Zn + 2HCl ZnCl 2 . This ability is called malleability. to wrap food items. Ans. Zigya App. In this course, metals get positive charge because of transfer of electrons and non-metal gets negative charge because of acceptance of electrons. Complete the following equation : Ans: Zinc reacts with dilute hydrochloric acid to form zinc chloride and hydrogen. Question 4: What do you understand by ductility? Liquid hydrogen is a good fuel for batteries. <p>Metals are malleable</p>. Metals and Non-metals - Objective type questions . (d) Metals react with acids to produce hydrogen gas. High Melting and boiling point: Most of the metals have high melting and boiling points. 6. 12. If the red litmus placed in a solution turns blue, the solution is called hydroxides. Class 10 Class 12. done Metals and Non-metals Total Questions - 20 question_answer 1) Properties of substances W, X, Y and Z are listed below: W, X, Y and Z are respectively A) Iron, iodine, hydrogen and oxygen B) Gold, sulphur, chlorine and hydrogen C) Copper, phosphorus, nitrogen and carbon D) Mercury, bromine, oxygen and graphite. 15. (a) Phosphorus is a very reactive non-metal. Question 3. The differences between metal and non-metal are, i.) So it is said that lightning is a boom to plants. alternatives. A metal which reacts with acid as well as base to form hydrogen gas. Example: copper wires. Identify the non-metal which exists in a liquid state in room temperature 25C. Extra Questions On Metals And Non-Metals Class 8 Question 8. A) 1, 2 or 3 B) That is why aluminium foils are used . (b) Metals are good conductors of heat and electricity. A non-metal in chemistry can be defined as a chemical element that generally in a chemical reaction gains electrons when reacts with a metal. (d) Sodium and potassium are stored in kerosene. That is, it is malleable. NCERT Exemplar Class 8 Science Chapter 4 Materials : Metals and Non-Metals Multiple Choice Questions Question. 3. Reaction of metals with Halogens: Metals react with halogens to form halides which are ionic compounds. Mark 'T' if the statement is true and 'F' if it is false. Match the following option: A. Metallic oxide (i) Liquid Metal B. Non-metallic oxide (ii) Kept in kerosene C. Lead (iii) Kept in water D. Lead (iv) Basic in nature Zinc Phosphorus Sulphur Oxygen Answer is (a) zinc Q.2 Which of the following statements are correct? 2. Free solutions for NCERT Solutions - Science , Class 8 Chapter 4 Materials: Metals and Non-Metals designed by Lido Experts. Access Answers to NCERT Exemplar Class 8 Science Chapter 4 - Materials Metals And Non-Metals Multiple Choice Questions 1. 8. Which of the following can be beaten into thin sheets? Q3) With reference to the physical properties of metals and non-metals, state the following exceptions. 5 - Coal and Petroleum. 4) Non-metals doesn't show ductility as they cannot be drawn into thin wires. (b) Sodium is a very reactive metal. b) Why sodium metal is stored in kerosene? Materials: Metals and Non-Metals Class 8 Extra Questions Very Short Answer Type. (b) they can share electrons with chlorine. Mercury. All metals are reactive. 6 - Combustion and Flame. Which of the following statements is correct? Question 1. Free solutions for NCERT Solutions - Science , Class 8 Chapter 5 - Materials: Metals and Non-Metals Exercise question 8. We hope the NCERT Solutions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals help you. Sodium metal is very reactive. (a) Aluminium is highly malleable and it can be easily beaten in sheets to make its foil for wrapping purposes. Exercise Q1. 14. ( ) (b) Sodium is a very reactive metal. Class 10 Class 12. 4. (a) they can give electrons to chlorine. APPEARS IN. Properties of Non-metals Lead is used in storage batteries. (c) they can give electrons to chlorine atoms to form chloride ions. Metals are lustrous whereas non-metals have no luster. CBSE Class 8 - Science - Metals and Non-Metals (Question Bank) (#cbsenotes) #eduvictors Metals and Non-Metals (Question Bank) Name the following questions: 1. NCERT Class 8 Science Chapter wise Solutions. (i) Non-metals are non-malleable i,e, they cannot be beaten into thin sheets with a hammer. Students can take a free test of the Multiple Choice Questions of Materials: Metals and Non-Metals. Also Check: NCERT Solutions for Class 8 Science. It is a property of metals only. Which of the following metals burns with dazzling white flame? Which of the following is not a metal? 3. It is also soft and does not react with food items. Solve any question of Metals and Non metals with:- (a) Generally, non-metals react with acids. (b) Copper, aluminium and iron are metals but sulphur is not a metal. 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, malleability . Metalloid, in chemistry, is a term that describes a chemical element forming a simple substance having properties intermediate between those of a typical metal and a typical nonmetal. Do non-metals produce ringing sound? Metals are non-lustrous. MCQs Questions Class 8 Science Chapter 4 Materials: Metals and Non-Metals with answer MCQ for boards and exams.Free PDF Download of CBSE Class 8 Science Chapter 4 Materials: Metals and Non-Metals Multiple Choice Questions with Answers.Based on Latest Exam Pattern. Students can take a free CBSE Solutions of Materials: Metals and Non-Metals. Write the equation of rusting of iron. (C) Copper cannot displace zinc from its salt solution. 16. Lead is a chemical element with an atomic number 82. That is why aluminium foils are used . (d) Coal can be drawn into wires. The substance that will be flattened on beating with a hammer is (a) Crystal of iodine (b) Lump of sulphur Non-metals form covalent chlorides because. Materials : Metals And Non-Metals. With the help of it, candidates can prepare well for the examination. (c) Iron is more reactive than copper. Answer: Metals can be beaten into thin sheets. 8. 8 - Cell - Structure and Functions. Aluminium. Related - Tips to score 95% in Class 10 Science Paper . (a) Platinum, gold and silver are used to make jewellery. answer choices. Metals and Non-Metals Class 8 - NCERT Chapter Solutions Q1. Ca + 2H 2 O Ca (OH) 2 + H 2. Magnesium reacts with cold water. Non Metals . Metals are malleable. (a) Copper (b) Sulphur (c) Aluminium (d) Iron Answer. Question 4. The two most abundant metals, found in the earth's crust, are-. All the gases are non-metals. Mark 'T' if the statement is true and 'F' if it is false. Therefore, it can be beaten into thin foils. Gold is allayed with copper to make it hard. All metals exist in solid form at room temperature. 12. Gallium has a low melting point. Substances used to enhance the growth of plants. (b) Sodium, potassium and lithium are stored under oil. Nitrogen dioxide dissolves in rainwater in the presence of oxygen and reaches the soil as nitric acid (HNO 3) 4NO 2 + 2H 2 O + O 2 4HNO 3. Each Questions has four options followed by the right answer. Zigya App. Sodium . NCERT Exemplar Class 8 Science Chapter 4 Materials : Metals and Non-Metals Multiple Choice Questions Question. 7 - Conservation of Plants and Animals. For e.g. <p> Metals are good insulators of heat and electricity </p>. c. Magnesium . In other words bond formed between positive and negative ion is called ionic bond. (c) Iron is more reactive than copper. to wrap food items. (c) A non-metal which has low tensile strength (d) A non-metal which conducts electricity (e) A metal which floats on water Reaction of metals towards dihydrogen: Metal Hydrides are formed when Metals reacts with dihydrogen. Alkali metals react in following way: 2M + H 2 2M + H -. Mark 'T' if the statement is true and 'F' if it is false. ii.) Each question has right answer Solved by Expert Teacher. Answer: Basic. 1 Which of the following is not a metal? Sodium is more reactive than magnesium. (A) Aluminium foils are used to wrap food items. Answer: 3Fe + 2H 2 O + O 2 Fe 3 O 4 + 2H 2. (a) Phosphorus is a very non-metal. Metals: Non-metals: 1. Question 3 Fill in the blanks. All metals are ductile All non- metals are ductile Generally metals are ductile Some non-metals are ductile This is a 'Metals and non-metals quiz' created for class 8th graders. Must Read: Science Projects for Class 8 The difference between metals and nonmetals is that metals are hard, lustrous, malleable, ductile, sonorous and good conductors of heat and electricity whereas non-metals are not.
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