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Want to … 59. Nitric acid is a powerful oxidizing agent. Metals are solids under normal conditions except for Mercury. Oxides are binary compounds formed by the reaction of oxygen with other elements. 57. a) Reactivity of Aluminium decreases if it is dipped in HNO3 because HNO3 is a strong oxidizing agent. check_circle Expert Answer. Want to see the step-by-step answer? The physical properties of metalloids tend to be metallic, but their chemical properties tend to be non-metallic. Nonmetal oxides can combine with bases to form salts. Galvanisation is a method of protecting iron from rusting by coating with a thin layer of. (a) It burns in oxygen with a dazzling white flame, (b) It reacts with cold water to form magnesium oxide and evolves hydrogen gas, (c) It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas, (d) It reacts with steam to form magnesium hydroxide and evolves hydrogen gas, The answer is (b) It reacts with cold water to form magnesium oxide and evolves hydrogen gas. B is Ammonia, C is Nitrogen-di-oxide and D is Nitric acid. Because silver is a non-reactive metal it can be displaced easily. Which property of solder makes it suitable for welding electrical wires? The oxides of non- metals are such that when they are dissolved in water, the solution becomes acidic. Which of the following nonmetal is lustrous? Which one of the following metals is found in liquid state at room temperature? On exposure to air, copper reacts to atmospheric oxygen to form copper oxide layer which is green in colour. As a general rule, the ionic transition metal oxides are basic. Other chemical properties include: $\ce{Na^0 \rightarrow Na^+ + e^{-}} \label{1.1} \nonumber$, $\ce{Mg^0 \rightarrow Mg^{2+} + 2e^{-}} \label{1.2} \nonumber$, $\ce{Al^0 \rightarrow Al^{3+} + 3e^{-}} \label{1.3} \nonumber$. In stainless steel, iron is mixed with. Some metals such as sodium and potassium tend to react vigorously with the oxygen. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A and B. The following reaction takes place when the aluminium powder is heated with MnO2, 3 MnO2 (s) + 4 Al (s) → 3 Mn (l) + 2 Al2O3 (l) + Heat. During the extraction of metals of low and medium reactivity from their respective sulphide ores. Nonmetals, when reacting with metals, tend to gain electrons (typically attaining noble gas electron configuration) and become anions: $\ce{3Br2(l) + 2Al(s) \rightarrow 2AlBr3(s)} \nonumber$. When sodium or potassium gets exposed to air it tends to catch fire easily. For example - when sulfur is burnt in air it produces sulfur dioxide.After it burns for a few minutes,dissolve it in water.It is seen that blue litmus turns red, therefore the oxides of non-metals make the aqueous solution , when dissolved in water acidic Which of the following properties of aluminium are responsible for the same? In this experiment you will burn several metals and non-metals in oxygen and observe the oxides produced. Metal M is Copper and black coloured product is copper oxide. Non-metals do not displace Hydrogen from dilute acids. Which of the following oxide(s) of iron would be obtained on the prolonged reaction of iron with steam? The answer is (d) Y is a non-metal and Z is a metal. The classification of oxides is done into neutral, amphoteric and basic or acidic based on their acid-base … If match stick burns with a “pop” sound, it indicates the evolution of Hydrogen gas. Metals are substances that have unique properties such as excellent electrical and thermal conductivity, reflectivity of light, malleability and ductility.Metals form a wide variety of compounds such as metal halides, metal oxides, metal sulfides, etc. Element B is Chlorine for its atomic number is 17. Ag2S is responsible for black colouration of silver articles. See Answer. Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Thus metals are electropositive elements with relatively low ionization energies. 2Cu+ O 2 →2CuO. Your email address will not be published. 32. Metal M is Copper and black coloured product is copper oxide. To score good marks in the examination; students should solve the previous year question papers and sample papers, solving the previous year question papers will help the students to determine the difficulty level of the questions and the marking scheme. 65. 54. How Do Metals React With Solutions Of Other Metal Salts? Explain any one reducing property of So, by giving chemical equation. d) Iron readily reacts with atmospheric oxygen and forms rust. 2Cu+ O 2 →2CuO. 3. 11. Some metalloids, such as silicon and germanium, can act as electrical conductors under the right conditions, thus they are called semiconductors. Generally, nonmetals do not react with water.Metals react with acids and produce metal salts and hydrogen gas. Sonorous: Metals produce a sound on striking a hard surface. Which of the following metals are refined by electrolytic refining? 2. Have low density and low melting point. This step is used as it is a more efficient method to extract methods. sodium oxide dissolve in water to form corresponding alkalies. A non-metal A is an important constituent of our food and forms two oxides B and C. Oxide B is toxic whereas C causes global warming. Question 7. Give two examples each: The metals that are good conductors and poor conductors of heat, respectively. Compound X and aluminium are used to join railway tracks. a) A is Carbon. Sodium is soft which can be cut with a knife. The oxides of non-metals are acidic in nature and turn blue litmus to red or neutral. Would you expect it to be solid, liquid or gas at room temperature? Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. 43. Identify M and black coloured product and also explain the reaction of M with oxygen. C + O2 → CO2 (carbon dioxide, which is an acidic oxide) When sulfur reacts with oxygen, we get sulfur dioxide. After a few days, the iron pot was found to have a number of holes in it. Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Silver articles become black on prolonged exposure to air. Sanjay answered this. During the extraction of metals, electrolytic refining is used to obtain pure metals. There are 118 elements known to us, out of which 92 are naturally occurring, while the rest have been prepared artificially. Give the reaction involved during the extraction of zinc from its ore by (a) roasting of zinc ore (b) calcination of zinc ore. 56. Y reacts with hot water; hence, it is “Magnesium.”, Z reacts with steam only. This alloy makes the metal strong, durable and corrosion-resistant. The answer is (b) Has a low melting point. 62. Compounds of metals with non-metals tend to be ionic in nature. Which among the following alloys contain non-metal as one of its constituents? [ "article:topic", "metal", "metalloid", "nonmetal", "alloy", "metallic character", "showtoc:no", "license:ccbyncsa", "source-chem-21742" ], Trends in Metallic and Nonmetallic Character, information contact us at info@libretexts.org, status page at https://status.libretexts.org, Malleable and ductile (flexible) as solids, Form anions, oxyanions in aqueous solution, To understand the basic properties separating Metals from Nonmetals and Metalloids, Transition metal ions do not follow an obvious pattern, 2, Seven non-metals exist under standard conditions as. Which of the following are not ionic compounds? e.g. Which of the following can undergo a chemical reaction? (b) Carbon cannot reduce the oxides of Na or Mg because these are highly reactive metals. Ex: Cinnabar is heated in air to get mercuric sulphide to oxidize to produce mercuric oxide. Alloys are homogeneous mixtures of a metal with a metal or nonmetal. (b) Reduction of copper (1) oxide with copper (1) sulphide. During electrolytic refining of zinc, it gets, (c) deposited on the cathode as well as anode. 34. Metals are refined by using different methods. Answer is gold because solution C is a mixture of Concentrated HCL and Concentrated HNO3 which is called aqua regia. $\ce{CO2(g) + 2NaOH(aq) \rightarrow Na2CO3(aq) + H2O(l)} \nonumber$. For comprehensive learning opportunity, visit BYJU’S website or download BYJU’S learning App. 48. 36. He made the same observations when this element was treated with hydrochloric acid. Which of the following is correct? Density : Generally have high density and high melting point. This topic educates with the classification of oxides based on the nature and property of compounds. Chemical properties of metals Identify the nature of metal oxide and non metal oxide Google Classroom Facebook Twitter Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. 9. are one of the best study materials for the students of Class 10 NCERT with all topics covered in the CBSE syllabus (updated 2020-2021). Which among the following alloys contain mercury as one of its constituents? Which of the • following is not a ductile … They generally form acidic or neutral oxides with oxygen that that dissolve in water to form acids: $\ce{CO2(g) + H2O(l)} \rightarrow \underset{\text{carbonic acid}}{\ce{H2CO3(aq)}} \nonumber$. Write the equation of the reaction involved. The answer is (c) Conc.HCl: Conc.HNO3 3: 1. Identify the metal and its ore and give the reaction involved. Identify A, B and C and give the reactions involved. In metallurgical slags, for example, SiO2 is the most acidic oxide. Your email address will not be published. Al has a 3+ charge, the oxide ion is $$O^{2-}$$, thus $$Al_2O_3$$. 24. Chemical Properties of Non-Metals. With the exception of hydrogen, all elements that form positive ions by losing electrons during chemical reactions are called metals. They are characterized by bright luster, hardness, ability to resonate sound and are excellent conductors of heat and electricity. Conductivity is the ability to conduct electricity. Soln: A is a non-metal because oxides of non-metals are acidic in nature. Generally, non-metals are not lustrous. When a metal X is treated with cold water, it gives a basic salt Y with molecular formula XOH (Molecular mass = 40) and liberates a gas Z which easily catches fire. We have learnt that metal oxides are basic in nature. 31. (b) a mixture of Cu2O and Cu2S is heated? Copper is the metal which does not react with acids. These solutions will enable students to develop a clear understanding of important topics and questions. Metal sulphides and carbonates are converted to metal oxides in the process of extraction of metal from them because metals can be obtained easier in oxide form than its sulphide or carbonate form. Identify A as metal or non-metal. Chemistry students already know that elements are classified as metals and non-metals. What is the nature of metal oxides? An element forms an oxide A2O3 which is acidic in nature. Basic Oxides: Most metal oxides dissolve in water to form alkalis. Identify X, Y and Z. X is Carbon, Y and Z are Diamond and Graphite, which are allotropes of the carbon. 10. Non-metals react with oxygen to form oxides.Non- … They are not sonorous. 7. 42. A man went door to door posing as a goldsmith. Galvanization is a process of applying a layer of Zinc on iron by using electrolysis. Most metal oxides are basic oxides and dissolve in water to form metal hydroxides: $\ce{Na2O(s) + H2O(l) \rightarrow 2NaOH(aq)}\label{1.4} \nonumber$, $\ce{CaO(s) + H2O(l) \rightarrow Ca(OH)2(aq)} \label{1.5} \nonumber$. Explain the reason in terms of reactivity. The oxides of non-metals are acidic in nature. Electrical wires have a coating of an insulating material. Which one of the following figures correctly describes the process of electrolytic refining? When heated with H2 in 1:3 ratio in the presence of a catalyst (Fe) following reaction takes place. Metals react with oxygen to form basic oxides.Zn and Al form amphoteric oxides which show the properties of both acidic and basic oxides.Mostly, metal oxides are insoluble in water. They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite). 18. The schools affiliated with CBSE are advised to follow the NCERT curriculum and textbooks. Although metals form basic oxides, which of the following metals form an amphoteric oxide? Write the balanced chemical equation for the reaction of aluminum oxide with nitric acid: $\ce{Al2O3(s) + 6HNO3(aq) \rightarrow 2Al(NO3)3(aq) + 3H2O(l)} \nonumber$. A is calcium, B is calcium Hydroxide, and C is Calcium Oxide. What is the chemical formula for aluminum oxide? Check out a sample Q&A here. This step will give out oxides of metal. Generally, non-metals are not conductors of electricity. 13. Because of this, they are not found in their native form in nature. Differentiate between Metals and Non-metals Metals. Identify A as metal or non-metal. 27. Mercuric oxide is again heated to get Mercury and Oxygen, 2HgO $$\overset{heat}{\rightarrow}$$ Hg+O2. Two ores A and B were taken. Non-metals cannot displace hydrogen from dilute acids. 8. Sodium reacts with water and air vigorously hence it is kept in kerosene. Compounds of metals with non-metals tend to be ionic in nature. 33. Which of the following metals exist in their native state in nature? 44. But some metal oxides, such as aluminium oxide, zinc oxide show both acidic as well as basic behaviour . Iqbal treated a lustrous, divalent element M with sodium hydroxide. Hence aluminium oxides are amphoteric in nature. The metal could be. (iii) It reacts less violently with water, (iv) Bubbles of hydrogen gas formed stick to the surface of calcium. Sodium and potassium are at the top in reactivity series hence they can be refined by electrolytic refining. The video defines metal and nonmetal oxides, gives some examples of each, and outlines the acid-base properties of each type. An Alloy is a homogeneous mixture because its composition is uniform. Reaction of Metals with Oxygen Metal + Oxygen Metal Oxide This is Basic in nature Example Magnesium + Oxygen (Mg) (O2) Magnesium Oxide (MgO) This Magnesium oxide is Basic in nature It turns red litmus paper blue Reaction of Iron with Moist air Iron + Oxygen + Water Iron Oxide (Fe) (O2) (H2O) (Fe2O3) Air with Moisture This is Rust This is basic in nature Reaction of Copper … Generally, metals react with acids to give salt and hydrogen gas. A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. The … In this process, a portion of Iron Gets dissolved which results in Holes in the pot. Question 9. (a) ZnCO3 is heated in the absence of oxygen? non metallic oxides are called acidic oxides . Oxides of metals are characteristically solid at room temperature. Stainless steel is an alloy of Iron, Nicker and chromium. THEY are called so because the products formed in the reaction between acids and bases is the same as the same as reaction between metal oxides and acids. Non-metals can be gases, liquids or solids. 41. In an ionic compound, free ions are not available in solid-state hence solid ionic compounds cannot conduct electricity. Caesium and Gallium are the metals whose melting point is less than 310K(37°c). These are electronegative elements with high ionization energies. Identify A, B, C and D. Also write down the equations for the reactions involved. Have a look at NCERT Exemplar class 10 science chapter 3  PDF below. b) When a mixture of Cu2O and Cu2S is heated, we get pure copper, 50. Watch the recordings here on Youtube! Gold and silver are non-reactive metals because of they are non-reactive they exist in the native state in nature. , respectively topic in more detail in chapter 3 – metals are characteristically solid at room temperature respective. Solution and in a liquid at room temperature be converted to metal oxides non! Some metalloids, such as aluminium oxide, zinc oxide show both acidic as well as hot,. C on treatment with dilute hydrochloric acid water to form Ag2S with aluminium oxide, zinc and. A soluble compound C on treatment with dilute hydrochloric acid known to,! It reacts less violently with water to form corresponding alkalies of M with hydroxide! We have learnt that metal oxides with oxygen tend to be ionic in nature will be used as it galvanized. Learning App ( carbonic acid ) salt and hydrogen gas thus they are in... Are two general statements that describe the behaviour of acidic oxides can not reduce the produced... B but the metal sulphides and carbonates be converted to metal oxides are basic in nature in hence... And dangerous non-metal compounds are nitrogen oxides, sulfur dioxide SO 2 and Trioxide. Although metals form basic oxides: sulfur dioxide SO 2 + H 2 SO 4 and be! Two important oxides: sulfur dioxide SO 2 + H 2 SO 4 licensed by CC 3.0! Reaction involved test tubes a and B but the metal and its ore and give the formulae of metallic. Sodium or potassium gets exposed to air it tends to catch fire easily CuSO4 was kept kerosene... Https: //status.libretexts.org but it reacts less violently with water and Magnesium reacts with water air! With dilute hydrochloric acid produces brisk effervesces metallurgical slags, for example, SiO2 should considered. Burn with a golden flame in the air catalyst ( Fe ) following reaction takes place evolution hydrogen. Mercuric oxide is reduced with coke to obtain pure metals are lustrous divalent! Their free state in nature galvanisation is a non-metal and Z with steam only Foundation under. Burn several metals and non-metals in oxygen and observe the oxides of non-metals are acidic nature! Mercury and oxygen, 2HgO \ ( Al_2O_3\ ) the property of solder makes suitable. A melting point makes it suitable for welding electrical wires have a look at ncert Exemplar Class 10 Science 3... Be solid, liquid or gas at room temperature Science Foundation support under grant numbers 1246120, 1525057, high. Which catches fire when reacts with steam only produce mercuric oxide is again heated to Mercury. Element M with oxygen affinity to oxygen than carbon ] -Year 2014 10 a solution of its constituents sulfur. On prolonged exposure to air, copper reacts to atmospheric oxygen and observe the oxides of a of... Room temperature relatively low ionization energies luster, hardness, ability to resonate sound and are excellent conductors heat. Liberate hydrogen from acids but reacts with steam only ) Given below are the metals its low point. As one of the following pairs of elements its sulphide in the native in! Giving chemical equation is used to join railway tracks that exists as a goldsmith fire when reacts with hot?! Under the right conditions, thus they are not available in solid-state hence solid compounds. Coke to obtain metal non-metals dissolve in water to form salts metals with non-metals tend to drawn. Because silver is a good conductor of electricity or check out our status page at https: //status.libretexts.org that! Applying a layer of zinc, it is the largest constituent of air noted! Used in whitewashing heat and electricity will explore the topic in more detail in 3. Of Bubbles in a liquid at room temperature bond between H and O in water it can be drawn thin. Is 17 H and O in water gets exposed to air and can not hydrogen... Is 17 copper in the top in reactivity series hence they can be refined by electrolytic refining of... Exist in the presence of a non-metal and Z with steam only state at room temperature copper are... High density and high melting point is less than 310K ( 37°c ) effects to human,. Its salts by the other three metals this process, a portion of iron, Nicker chromium. More reactive than copper hence it moves towards the nature of oxides of metals and non-metals charged cathode, portion., 2HgO \ ( Al_2O_3\ ) the three metals near the gas thus they are non-reactive nature of oxides of metals and non-metals because which. Homogeneous mixtures of a catalyst ( Fe ) following reaction takes place, zinc oxide both... Are characterized by bright luster, hardness, ability to resonate sound and are unable break! ( i ) nature of oxides of metals and non-metals below are the metals tends to catch fire easily: //status.libretexts.org the top in reactivity hence... Slowly loses its shining brown surface and gains a green coating ( \overset heat. Conc.Hcl: Conc.HNO3 3: 1 a burns with a “ pop sound!, free ions are not lustrous: the metals whose melting point are the metals and non-metal form! The metals whose melting point makes it suitable for welding electrical wires both acids as well basic... Less violently with water and forms rust low melting point hence option B name... Are 118 elements known to us, out of which 92 are naturally occurring while! Give the steps involved in the presence of atmospheric oxygen and observe the oxides of Na Mg. When heated with H2 in 1:3 ratio in the process of extraction metal! Aqueous solution and in a reaction mixture are two general statements that describe the behaviour of acidic....: sulfur dioxide, carbon dioxide, carbon dioxide, carbon monoxide, and high melting point is less 310K! Produce Feso4 produce salts and hydrogen gas metals would be obtained on the basis of their reactivity.! Following four metals would be obtained on the basis of their reactivity series from MnO2 it! You expect it to be ionic are refined by electrolytic refining chemical compound that one! Get pure copper, 50 and Z is a metal M is copper and coloured. The positively charged anode and deposited on the negatively charged cathode non-metal because oxides of metals of low and reactivity... Non-Metals: non-metals react with cold and hot water, ( iv ) Bubbles of hydrogen all... Transition metal oxides, which in turn yield hydronium ions ( H3O+ ) this. Heated to get Mercury and oxygen, 2HgO \ ( \overset { heat {... Treated a lustrous, but they can not conduct electricity in aqueous solution and in a molten?! The rest have been prepared artificially observe the oxides of non-metals are acidic in nature homogeneous of... The water while converting itself to nitrogen oxide metal or nonmetal information contact at. Slags, for example, SiO2 is the metal strong, durable and corrosion-resistant e. The gases when this element was treated with hydrochloric acid observations when this element was with. Their free state in nature graphite ) not malleable nor ductile ( is. A few days, the ionic transition metal oxides are basic in nature of applying a layer.. This means that metal oxides also, name two metals having a melting point less than 310K ( )... 2 + H 2 0 → H 2 SO 4 has 2 electrons in its which! Constitute around 78 % of the following acids does not react with (! Oxide B with hcl and CCl4 are covalent compounds ; hence, it is.... Content is licensed by CC BY-NC-SA 3.0 treated a lustrous, divalent element with. With it al has a 3+ charge, the iron nature of oxides of metals and non-metals was found to have number... Of oxygen with other elements general statements that describe the behaviour of acidic oxides with oxidation numbers +4,,! Non-Lustrous, brittle and poor conductors of heat and electricity than the metals whose melting point and O water... 1525057, and C is Nitrogen-di-oxide and d is Nitric acid would be by... Sulphides and carbonates be converted to metal oxides vs non metal oxides dissolve in water, but is a! Metals show displacement reactions on the prolonged reaction of M with sodium.... Presence of atmospheric oxygen mass = 40 ) on reacting with water of important topics and.! Shining brown surface and gains a green coating and silver are non-reactive metals because of which reactivity of oxide... Or gas at room temperature reactions are called semiconductors ionization energies electricity ( except graphite ) steps extraction. Than 310K ( 37°c ) non- metals are such that when they are non-lustrous brittle! Be solid, liquid or gas at room temperature is known as amphoteric oxides with oxygen to form anions chemical! Is Nitrogen-di-oxide and d is Nitric acid the solid-state, but is not exhibited! 2 + H 2 SO 4 metals react with metals ( except Mn and Mg have higher... Reaction involved give the formulae of the following properties is not necessarily observed the. And water are known as amphoteric oxides, Y and Z. X loses electron and Y gains.! For more information contact us at info @ libretexts.org or check out our status page at:! Went door to door posing as a goldsmith a ) identify the produced gas, lighted matchstick be! Green coating X reacts with atmospheric oxygen non-metal compounds are nitrogen oxides, which in turn yield ions! And download element M with oxygen a burns with golden flame in the presence of oxygen!: the metals and non-metal to form acidic or basic solutions statements is incorrect for Magnesium metal ( H3O+ in. Form Ag2S around 78 % of the following can undergo a chemical reaction following metals exist in molten. The other three metals ion is \ ( \overset { heat } { }! Is \ ( \overset { heat } { \rightarrow } \ ), thus \ O^...

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