Which of the following can be beaten into thin sheets? <p>Metals are malleable</p>. Answer: The metals have the following properties: (a) Hardness, (b . to wrap food items. 1 Which of the following is not a metal? (c) Iron is more reactive than copper. Choose the correct answer 1. (d) Metals react with acids to produce hydrogen gas. Lead is the most stable substance in nature. CBSE Class 8 - Science - Metals and Non-Metals (Question Bank) (#cbsenotes) #eduvictors Metals and Non-Metals (Question Bank) Name the following questions: 1. Write the name of a metal which is found in liquid state at room temperature. Name some common non-metals used in our daily life. (a) Phosphorus is a very non-metal. Lead is a chemical element with an atomic number 82. A) 1, 2 or 3 B) ( ) So it is said that lightning is a boom to plants. 5. When a metal reacts with oxygen, the resulting oxide of the metal-. a) Write two differences between metal and non-metal. Do you know metals? It is a property of metals only. Complete the following reactions: Ans: 2Mg + O 2 Heat - 2MgO. Ans: Sodium and potassium, these metals are so soft that they can be cut with a knife easily. 8. Question 1. Metals are (a) shiny (b) hard (c) sonorous (d) all of these Answer Question 2. 2NO + O 2 2NO 2. Malleability: Metals can be beaten into thin sheets. (b) Metals are good conductors of heat and electricity . More variety in colour and states are displayed by the non-metals in comparison to metals. Substances used to enhance the growth of plants. Properties of Non-metals (b) Immersion rods made up of metallic substances because metals are good conductors of heat and electricity. (b) Sodium, potassium and lithium are stored under oil. It has a tendency to form an acid if combined with oxygen and hydrogen. Ionic bonds are formed because of transfer of electrons from metal to non-metal. (b) All non-metals are ductile. Materials Metals And Non Metals Questions And Answers Question 7. 2. Metals: Non-metals: 1. Also Check: NCERT Solutions for Class 8 Science. CBSE Solutions Class 8 Science Beehive Prose. (a) Generally, non-metals react with acids. (b) Metals are good conductors of heat and electricity. Question 3. CBSE Previous Year Question Paper With Solution for Class 12 Commerce; High Melting and boiling point: Most of the metals have high melting and boiling points. 8. Most of the metals in existence have the power to conduct electricity, unlike all non-metals. The physical properties of metals are as follows:-. False. Zigya App. (d) Metals react with acids to produce hydrogen gas. So, in this process, a certain amount of gold is lost to the acidic solution. 3. Question: Non-metals form covalent chlorides because. We hope the NCERT Solutions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals help you. (d) they cannot share electrons with chlorine atoms. . Answer: is a basic oxide. Download the Science Quiz Questions with Answers for Class 8 free Pdf and prepare to exam and help students understand the concept very well. Answer 4. (a) they can give electrons to chlorine. Appearance: All metals are generally shiny. For example, carbon, sulphur and phosphorus are solid non-metals; bromine is a liquid non- metal; whereas hydrogen, oxygen, nitrogen and chlorine are gaseous non-metals. Answer 3. 6 - Combustion and Flame. Write the equation of rusting of iron. Materials : Metals And Non-Metals. (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. Solve any question of Metals and Non metals with:- True. The differences between metal and non-metal are, i.) 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. Ans. (d) Metals react with acids to produce hydrogen gas. Answer: (a) Phosphorus is a very reactive non-metal. 11. State whether the statements given below are True or False: 1. Distinguish between metals and non-metals on the basis of these properties. 3 - Synthetic Fibres and Plastics. Question 3: What do you understand by malleability? Answer: aluminium and iron. The metals, used in making the alloy 'german silver', are-. Answer: The materials which are not sonorous and are poor conductor of heat and electricity are called non-metals. With the help of it, candidates can prepare well for the examination. 1. to wrap food items. Students can take a free test of the Multiple Choice Questions of Materials: Metals and Non-Metals. Mark 'T' if the statement is true and 'F' if it is false. Related - Tips to score 95% in Class 10 Science Paper . (b) Copper, aluminium and iron are metals but sulphur is not a metal. (a) Phosphorus is a very reactive non-metal. Malleability - The property of metals by which they can be beaten into thin sheets is called malleability. Mercury and Gallium are the metals which are found in liquid state at room temperature. (b) they can share electrons with chlorine. Materials: Metals and Non-Metals Class 8 Extra Questions Very Short Answer Type. Students can take a free CBSE Solutions of Materials: Metals and Non-Metals. ( ) Answer. Answer: Basic. 2. 3. 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. 12. NON-METALS 1) Non-metals are non-lustrous as they cannot shine. Metals are lustrous whereas non-metals have no luster. That is why aluminium foils are used . Do you wish to test out your understanding of the two types of materials? Question 1. Here is a comprehensive collection of multiple choice questions that could be asked from Class 8 Science Chapter 4 Metals and Non-metals. Gold (i) Thermometers B. Cl(17) - 1 electron -Cl-Electronic Configuration = 2,8,7 . The correct option is a . Ans. b) Why sodium metal is stored in kerosene? Sodium is more reactive than magnesium. Name two metals which can be cut with a knife. (a) Copper (b) Sulphur (c) Aluminium (d) Iron Answer. (a) Aluminium foils are used to wrap food items. 19. 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 . Question 12. All metals are reactive. True. b. Potassium . Mg + H2O- MgO + H2. Class 10 Class 12. 5) Non-metals cannot conduct heat as it has no free electrons that can carry heat from one . (v) Non-metals are generally soft. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction. This ability is called malleability. ii.) Zinc Phosphorus Sulphur Oxygen Answer is (a) zinc Q.2 Which of the following statements are correct? (c) A metal can displace a less reactive metal from its salt in an aqueous solution. If the red litmus placed in a solution turns blue, the solution is called hydroxides. Give reasons for the following: (a) Aluminium foils are used to wrap food items. Lead is soluble in nitric acid and acetic acid. These explanations are written by Lido teacher so that you easily understand even the most difficult concepts (a) Copper (b) Sulphur (c) Aluminium (d) Iron Soln: Answer is (b) Sulphur 2. The rest of these are non-metals. View Solution play_arrow Answer: 3Fe + 2H 2 O + O 2 Fe 3 O 4 + 2H 2. Therefore, immersion rods for heating liquids are made of metallic substances. Which of the following statements is correct? Zn + 2HCl ZnCl 2 . They are silicon, boron, arsenic, antimony, germanium, tellurium and polonium. 3) Non-metals doesn't show malleability as they cannot be beaten into thin sheets. Iodine. NCERT Class 8 Science Unit 4 is for Materials : Metals and Non-Metals. Non-metals are (a) non-ductile (b) non-sonorous (c) non-malleable (d) all of these Answer Question 3. Sodium metal is very reactive. 2) Non-metals are brittle. Iron (ii) Electric wire C. Aluminium (iii) Wrapping food D. Aluminium (iv) Jewellery E. Copper Distinguish between metals and non-metals on the basis of these properties. (b) they can share electrons with chlorine. Answer: Mercury. Answer Materials : Metals And Non-Metals. Zigya App. NCERT Class 8 Science Chapter wise Solutions. (c) Copper displaces zinc from zinc sulphate solution. (c) Iron is more reactive than copper. Answer. In polishing, the jeweller put the gold jewellery in a mild acidic solution, which in reaction with acid goes into the solution. False. Therefore, it can be beaten into thin foils. SOLUTION: Q 6. APPEARS IN. Non-metals . (d) Coal can be drawn into wires. Liquid hydrogen is a good fuel for batteries. Non Metals . (a) Generally, non-metals react with acids. 17. Non-metals can exist in all the three physical states: solid, liquid and gaseous. . (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. 20 seconds. Aluminium. The two most abundant metals, found in the earth's crust, are-. 7 - Conservation of Plants and Animals. Answer. Question 4. Ductility - The property of metals by which they can be beaten into wires is called ductility. 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. 1 Which of the following is not a metal? Lead is used in storage batteries. (a) All metals are ductile. 7. Give it . 9. 8. (c) they can give electrons to chlorine atoms to form chloride ions. They all are solids. Mark 'T' if the statement is true and 'F' if it is false. Nitric acid reacts with the minerals in the soil to form nitrate salts which is absorbed by the plants. Students can solve NCERT Class 8 Science Chapter 4 Materials: Metals and Non-Metals Multiple Choice Questions with Answers to know . (b) Metals are good conductors of heat and electricity. Gold is allayed with copper to make it hard. Non-metals react with oxygen to from basic or neutral oxides False. Comparative Study of Metals, Nonmetals, and Metalloids In turn, there are Four New Elements that are Added to the Periodic Table (b) Metals are good conductors of heat and electricity. Mark 'T' if the statement is true and 'F' if it is false. All metals are ductile All non- metals are ductile Generally metals are ductile Some non-metals are ductile Which of the following is not a metal? Which of the following metals burns with dazzling white flame? Answer: copper + zinc + nickel. 5 - Coal and Petroleum. 14. Non-metals form covalent chlorides because. (d) Metals react with acids to produce gas. 8. (c) Copper cannot displace zinc from its salt solution. E. Answer the following questions in short: 1. In other words bond formed between positive and negative ion is called ionic bond. For e.g. Answer. Exercise Q1. NCERT Exemplar Class 8 Science Chapter 4 Materials : Metals and Non-Metals Multiple Choice Questions Question. The chemical symbol Pb comes from the Latin word plumbum. (a) Aluminium foils are used to wrap food items because aluminium metal is malleable. Materials Metals and Non-Metals Questions and Answers Class 8 EXERCISE:- Q.1 Which of the following can be beaten into thin sheets? (a) Generally, non-metals react with acids. Give two uses of (a) Silicon : Highly pure silicon is used in making microchips for computers, transistors, solar cells, rectifiers and other solid state devices that are used extensively in the electronic and present space age industries. NCERT Exemplar Class 8 Science Chapter 4 Materials : Metals and Non-Metals Multiple Choice Questions Question. Mercury. 6. Reaction of metals towards dihydrogen: Metal Hydrides are formed when Metals reacts with dihydrogen. Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers by expert subject teacher for latest syllabus and examination. Generally, metals are good conductors of heat and electricity but non-metals are poor conductors. Exception - mercury: Generally non-metals are not shiny.
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