metals and non metals class 8 match the following

Gallium has a low melting point. The differences between metal and non-metal are, i.) (b) Metals are conductors of heat and (c) Iron is reactive than copper. CBSE Solutions Class 8 Science Beehive Prose. 3. 7 - Conservation of Plants and Animals. Materials Metals and Non-Metals Questions and Answers Class 8 EXERCISE:- Q.1 Which of the following can be beaten into thin sheets? Answer: copper + zinc + nickel. 6. Distinguish between metals and non-metals on the basis of these properties. Extra Questions On Metals And Non-Metals Class 8 Question 8. Non Metals . Metals are non-lustrous. Iron (ii) Electric wire C. Aluminium (iii) Wrapping food D. Aluminium (iv) Jewellery E. Copper Question 4. answer choices. Malleability - The property of metals by which they can be beaten into thin sheets is called malleability. (c) Copper displaces zinc from zinc sulphate solution. Ans. The substance that will be flattened on beating with a hammer is (a) Crystal of iodine (b) Lump of sulphur Choose the correct answer 1. Generally, metals are good conductors of heat and electricity but non-metals are poor conductors. Property by virtue of which metals can be beaten into thin sheets. CBSE Class 8 - Science - Metals and Non-Metals (Question Bank) (#cbsenotes) #eduvictors Metals and Non-Metals (Question Bank) Name the following questions: 1. Free solutions for NCERT Solutions - Science , Class 8 Chapter 4 Materials: Metals and Non-Metals designed by Lido Experts. (B) Immersion rods for heating liquids are made up of metallic substances. Complete the following reactions: Ans: 2Mg + O 2 Heat - 2MgO. True. A) 1, 2 or 3 B) (a) Generally, non-metals react with acids. ii.) 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. done Materials : Metals and Non-metals Total Questions - 35 question_answer 1) How many electrons are generally present in metals in their valence shell? (b) All non-metals are ductile. (a) they can give electrons to chlorine. 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 Related - Tips to score 95% in Class 10 Science Paper . 3) Non-metals doesn't show malleability as they cannot be beaten into thin sheets. Which of the following metals burns with dazzling white flame? 1 Which of the following is not a metal? Ans. 1 - Crop Production and Management. It is a property of metals only. (d) Coal can be drawn into wires. b. Potassium . ( ) (b) Sodium is a very reactive metal. Answer: Metals can be beaten into thin sheets. The correct option is a . All the gases are non-metals. Which of the following is not a metal? High Melting and boiling point: Most of the metals have high melting and boiling points. Cl(17) - 1 electron -Cl-Electronic Configuration = 2,8,7 . E. Answer the following questions in short: 1. Nitric acid reacts with the minerals in the soil to form nitrate salts which is absorbed by the plants. They all are solids. Question 12. In this course, metals get positive charge because of transfer of electrons and non-metal gets negative charge because of acceptance of electrons. Ionic Bonds. For e.g. 2NO + O 2 2NO 2. Ionic bonds are formed because of transfer of electrons from metal to non-metal. Page No. 8. A metal generally used for making jewellery. Each Questions has four options followed by the right answer. Here is a comprehensive collection of multiple choice questions that could be asked from Class 8 Science Chapter 4 Metals and Non-metals. Q2. Give reasons for the following. (a) reactive (b) good, electricity (c) more (d) hydrogen Q.4. Zinc Phosphorus Sulphur Oxygen Answer is (a) zinc Q.2 Which of the following statements are correct? Question 2. (d) Metals react with acids to produce hydrogen gas. There are few exceptions. Students can take a free CBSE Solutions of Materials: Metals and Non-Metals. (a) Generally, non-metals react with acids. Do non-metals produce ringing sound? MCQ Questions for Class 8 Science with . Question 3 Fill in the blanks. Bromine. These explanations are written by Lido teacher so that you easily understand even the most difficult concepts Answer: The metals have the following properties: (a) Hardness, (b . 4 - Materials : Metals and Non-Metals. 8 - Cell - Structure and Functions. (c) Iron is more reactive than copper. 4) Non-metals doesn't show ductility as they cannot be drawn into thin wires. 5 - Coal and Petroleum. (d) Metals react with acids to produce hydrogen gas. (b) Immersion rods made up of metallic substances because metals are good conductors of heat and electricity. Most of the metals in existence have the power to conduct electricity, unlike all non-metals. When a metal reacts with oxygen, the resulting oxide of the metal-. <p> Metals are good insulators of heat and electricity </p>. (c) A non-metal which has low tensile strength (d) A non-metal which conducts electricity (e) A metal which floats on water Distinguish between metals and non-metals on the basis of these properties. Answer 4. Non-metals . Answer 5. That is why aluminium foils are used . (c) Iron is more reactive than copper. Write the name of a metal which is found in liquid state at room temperature. Mark 'T' if the statement is true and 'F' if it is false. Metals are malleable. (c) A metal can displace a less reactive metal from its salt in an aqueous solution. (a) Copper (b) Sulphur (c) Aluminium (d) Iron Answer. ( ) If the red litmus placed in a solution turns blue, the solution is called hydroxides. (b) Metals are good conductors of heat and electricity. Answer: 6. True. Top . Sodium metal is very reactive. View Solution play_arrow (d) they cannot share electrons with chlorine atoms. Also Check: NCERT Solutions for Class 8 Science. Materials Metals And Non Metals Questions And Answers Question 7. 2. So, in this process, a certain amount of gold is lost to the acidic solution. to wrap food items. (b) Metals are good conductors of heat and electricity . Non-metals react with water to form a gas which burns with a 'pop' sound. Complete the following equation : Ans: Zinc reacts with dilute hydrochloric acid to form zinc chloride and hydrogen. Metals are lustrous whereas non-metals have no luster. Iodine. Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers Choose the correct option. Class 10 Class 12. 1 Which of the following is not a metal? (b) Copper, aluminium and iron are metals but sulphur is not a metal. 3. (v) Non-metals are generally soft. Use these for exam preparation, to understand concepts or to do your homework. 14. . Non-metals form covalent chlorides because. to wrap food items. 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. Rust formed on iron objects is basic in nature. CBSE Previous Year Question Paper With Solution for Class 12 Commerce; 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. (a) Phosphorus is a very reactive non-metal. 5) Non-metals cannot conduct heat as it has no free electrons that can carry heat from one . Name some common non-metals used in our daily life. This ability is called malleability. Question 4: What do you understand by ductility? Ans: Sodium and potassium, these metals are so soft that they can be cut with a knife easily. . (a) Phosphorus is a very non-metal. Give it . 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: is a basic oxide. False. 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. a. Sodium is more reactive than magnesium. Gold is allayed with copper to make it hard. Example: aluminium foil and silver sheets used to decorate sweets. 16. Do you wish to test out your understanding of the two types of materials? Metals are (a) shiny (b) hard (c) sonorous (d) all of these Answer Question 2. Properties of Non-metals 20 seconds. (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. Answer. (a) they can give electrons to chlorine. Q 2 Q 1.8 Q 3.1. Non-metals are (a) non-ductile (b) non-sonorous (c) non-malleable (d) all of these Answer Question 3. Give reasons for the following. Non-metals can exist in all the three physical states: solid, liquid and gaseous. Answer. (C) Copper cannot displace zinc from its salt solution. Mg + H2O- MgO + H2. (a) Generally, non-metals react with acids. In other words bond formed between positive and negative ion is called ionic bond. Materials : Metals And Non-Metals. A) 1, 2 or 3 B) 7, 8 or 9 C) 10, 11 or 12 D) 20, 30 or 40 View Solution play_arrow question_answer 2) How many electrons are present in non- metals in their outermost shell? Ans. Q. Question 3. 11. Metals and Non-Metals Class 8 - NCERT Chapter Solutions Q1. Exception - Diamond is hard. (b) Copper, aluminium and iron are metals but sulphur is not a metal. If you said yes, then the quiz below is perfect for you. (d) they cannot share electrons with chlorine atoms. Write the equation of rusting of iron. All metals are ductile All non- metals are ductile Generally metals are ductile Some non-metals are ductile (a) Aluminium foils are used to wrap food items. Therefore, it can be beaten into thin foils. Gold (i) Thermometers B. NCERT Exemplar Class 8 Science Chapter 4 Materials : Metals and Non-Metals Multiple Choice Questions Question. All metals exist in solid form at room temperature. Mark 'T' if the statement is true and 'F' if it is false. Do you know metals? Answer: 3Fe + 2H 2 O + O 2 Fe 3 O 4 + 2H 2. Each question has right answer Solved by Expert Teacher. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Sodium and potassium are stored in kerosene. 2 - Microorganisms : Friend and Foe. (b) Sodium is a very reactive metal. In polishing, the jeweller put the gold jewellery in a mild acidic solution, which in reaction with acid goes into the solution. NCERT Class 8 Science Unit 4 is for Materials : Metals and Non-Metals. The physical properties of metals are as follows:-. 13. 4. Answer: The materials which are not sonorous and are poor conductor of heat and electricity are called non-metals. 8. 12. answer choices. All netal exist in solid form at room temperature. Lead is used in storage batteries. Identify the non-metal which exists in a liquid state in room temperature 25C. 3 - Synthetic Fibres and Plastics. Zigya App. 18. (a) All metals are ductile. Lead is soluble in nitric acid and acetic acid. Ca + 2H 2 O Ca (OH) 2 + H 2. They are often called semi-metals. Example: copper wires. So it is said that lightning is a boom to plants. ( ) Appearance: All metals are generally shiny. For e.g. Question 4. Answer: (a) Phosphorus is a very reactive non-metal. The chemical symbol Pb comes from the Latin word plumbum. 19. These are the basic differences between them. Q3) With reference to the physical properties of metals and non-metals, state the following exceptions. A metal which reacts with acid as well as base to form hydrogen gas. It is also soft and does not react with food items. (a) A metals which is liquid at room temperature (b) A non-metal which sublimes and is non-lustrous. Free solutions for NCERT Solutions - Science , Class 8 Chapter 5 - Materials: Metals and Non-Metals Exercise question 8. 5. Ductility - The property of metals by which they can be beaten into wires is called ductility. Class 10 Class 12. Answer 2. Download the Science Quiz Questions with Answers for Class 8 free Pdf and prepare to exam and help students understand the concept very well. (a) Copper (b) Sulphur (c) Aluminium (d) Iron Answer. (b) Sodium, potassium and lithium are stored under oil. 17. 2. c. Magnesium . Zigya App. All metals are reactive. Question: Non-metals form covalent chlorides because. Students can take a free test of the Multiple Choice Questions of Materials: Metals and Non-Metals. Answer. 12. Exception - mercury: Generally non-metals are not shiny. Question 3: What do you understand by malleability? (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction. 15. Mark 'T' if the statement is true and 'F' if it is false. Metals are good insulators of heat and electricity. More variety in colour and states are displayed by the non-metals in comparison to metals. Copper is less . <p>Metals are malleable</p>. (a) Copper (b) Sulphur (c) Aluminium (d) Iron Soln: Answer is (b) Sulphur 2. a) Write two differences between metal and non-metal. 7. 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. 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 . 6 - Combustion and Flame. Which of the following is a non-metal? Non-metals react with oxygen to from basic or neutral oxides False. Match the following: Column A: Column B (a) Helium (1) Electric bulb (b) Neon (2) Thermometer (c) Argon . Liquid hydrogen is a good fuel for batteries. (d) Metals react with acids to produce gas. Zn + 2HCl ZnCl 2 . (a) Platinum, gold and silver are used to make jewellery. Answer: aluminium and iron. Mark 'T' if the statement is true and 'F' if it is false. Diamond ( a non-metal) is the hardest substance known. (c) they can give electrons to chlorine atoms to form chloride ions. 53. The metals which are solid in nature always have high melting and boiling points because they are closely packed and have high attraction. Substances used to enhance the growth of plants. (c) Iron is more reactive than copper. False. Lead is a chemical element with an atomic number 82. 8. Answer 3. (b) Immersion rods for heating liquids are made up of metallic substances. Answer: No, non-metals do not produce the ringing sound. Answer. Mercury and Gallium are the metals which are found in liquid state at room temperature. Lead is the most stable substance in nature. It has a tendency to form an acid if combined with oxygen and hydrogen. Mark 'T' if the statement is true and 'F' if it is false. Exercise Q1. 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. 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