2. Phosphorus is a very reactive non-metal element.If phosphorus is kept open in air,it react with the oxygen of air and catches fire.So,in order to protect phosphorus from atmospheric air,it is stored in a bottle containing water. Metal + Base → Hydrogen gas + Salt Aluminium gives hydrogen gas along with aluminium chloride when it reacts with dilute hydrochloric acid. Settled impurities in the solution are called Anode Mud. (CBSE 2009) Answer: Aluminium. Name a reducing agent that may be used to obtain manganese from manganese dioxide. Ca + 2H 2 O → Ca(OH) 2 + H 2. �Noble Gases Reaction of non metals with water: Non metals do not react with water as to react, they need to displace hydrogen and for displacing, they need to donate electrons to hydrogen but it is not possible as they are themselves electron acceptors. Reactive metals can displace less reactive metals from their compounds in solution or molten form. Conversion of concentrated ore into crude metal and. Reaction of metals with dilute acid: Metals form respective salts when reacting with dilute acid. Therefore, valence electrons = ? Reaction of non-metals with water. Positive ion: A positive ion is formed because of the loss of electrons by an atom. When electric current is passed through the solution, pure metal from anode moves towards cathode and is deposited over it. Nitrogen combines with hydrogen in presence of an iron catalyst to form covalent hydride ammonia. When we dissolve magnesium oxide in water, it gives magnesium hydroxide. Rusting of Iron: Rusting of iron is the most common form of corrosion. For example, They form negative ions and are good oxidising agents. We hope the given CBSE Class 10 Science Notes Chapter 3 Metals and Non-metals Pdf free download will help you. Electrolytic Refining: In the process of electrolytic refining, a lump of impure metal and a thin strip of pure metal are dipped in the salt solution of metal to be refined. Calcination: Heating of carbonate ores in the limited supply of air to convert them into oxides is known as Calcination. Reaction with Acids: (a) For Metals: The reaction of metals with oxygen. Metals in chemical reactions forms positive ions , for example dissociation of HCl in water forms H + ion . Non-metals:Non-metals do not react with water. All the alkali metals react vigorously with halogens to produce salts, the most industrially important of which are NaCl and KCl. Metal + Oxygen → Metal Oxide Ionic Bonds: Ionic bonds are formed because of transfer of electrons from metal to non¬metal. Non-metal + Oxygen → Non-metallic oxide Concentration of Ores: Removal of impurities, such as soil, sand, stone, silicates, etc. Types of alloys : Chemical Properties of Metals and Non-metals. Metals and non-metals can take part in oxidation reactions. The melting point of alloys is lower than the constituent metals. The physical properties are insufficient to identify if a substance is metal or a nonmetal and so there is need to test chemical properties of metal and non-metal . Name the type of reaction. The reaction of sodium metal with water: Sodium metal vigorously reacts with water and forms sodium hydroxide along with a lot of heat. Many metals are found in the form of oxides because oxygen is abundant in nature and is very reactive. Ionic compounds are solid. Metals. Chemical Properties of Metals Take some copper turnings in a test tube and add some iron sulphate solution with the help of a dropper (test tube B). Reaction of Metal and Non-metal: Many metals form ionic bonds when they react with non-metals. Electrolytic Refining of Copper: A lump of impure copper metal and a thin strip of pure copper are dipped in the solution of copper sulphate. For example, one of the highly reactive non-metals is phosphorus and it catches fire when exposed to air that is why it is stored in water … 2Al + 6HCl (Hydrochloric acid) → 2AlCl3 (Aluminium Chloride) + 3H2 (Hydrogen). Powerpoint which leads students through discovering the reaction of metal with water. O 2N aOH +H 2. . Non-metal oxides are acidic in nature. This page looks at the reactions of the Group 1 elements - lithium, sodium, potassium, rubidium and caesium - with water. Reaction is given below – Na + H 2 O NaOH + H 2. (iii) Extraction of Metals of High Reactivity: Metals of high reactivity; such as sodium, calcium, magnesium, aluminium, etc. Mg + H 2 O ⇨ MgO + H 2. Alkali Metal Hydrides and Water. Non-metals cannot displace hydrogen from dilute acids. The reactivity of the metal determines which reactions the metal participates in. The solution of carbon dioxide in water turns blue litmus paper red. Non-metals cannot give electrons to hydrogen in water to be released as H2 gas. International; Resources. Reaction of Zinc with dilute sulphuric acid: Zinc sulphate and hydrogen gas are formed when zinc reacts with dilute sulphuric acid. Not all metals react with water. Mineral: Minerals are naturally occurring substances which have a uniform composition. Metal A + Salt Solution of metal B → Salt Solution of metal A + metal B Rusting is prevented by preventing the reaction between atmospheric moisture and the iron article. The non-metal and oxygen gas (O 2) are the reactants in this type of reaction, and a non-metal oxide is the product. 3. MO + H 2 O → M(OH) 2 (where M = group 2 metal) Thus, these compounds are often called basic oxides. Reactions between Non-Metal and Non-metal, Reaction of non-metals with oxygen, Reaction of sulfur with oxygen, reaction of carbon with oxygen, A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint, GCSE and IGCSE Science, examples and step by step demonstration MgO + H2O → Mg(OH)2 (Magnesium Hydroxide). Example: When an electric current is passed through molten state or solution of sodium chloride, sodium metal gets deposited over the cathode. are extracted from their ores by electrolytic reduction. Non-metals: Generally, non-metals do not react with acids. From the above reactions, we can conclude that the order of reactivity of zinc, copper, and silver is: Zn > Cu > Ag (i.e., zinc is the most reactive of the three and silver, the least reactive). Metals give hydrogen gas when they react with a base. You might have to leave the metals that react too slowly until the next lesson; For metals such as calcium that react quickly with water set up the apparatus shown above so that you can collect the hydrogen gas that is given off during the reaction But when steam is passed over aluminium metal, aluminium oxide and hydrogen gas are produced. �Metalloids 4. Atomic number of chlorine = 17 1. In this course, metals get positive charge because of transfer of electrons and non-metal gets negative charge because of acceptance of electrons. (ii) Sulphide ores are heated in the Presence of oxygen. Here are two examples for the non-metals carbon and sulphur. MgO + H 2 O Mg(OH) 2. For example Sodium amalgams [Na(Hg)] and Zinc amalgams [Zn(Hg)]. Carbon dioxide gives carbonic acid when dissolved in water. For example, They form negative ions and are good oxidising agents. The non-metals ar e either solids or gases except bromine which is a liquid. Non-metals are poor conductors of heat and electricity with the exception of graphite which is a good conductor of heat and electricity. Zinc oxide behaves like a base when reacts with acid. Non-metal + Hydrogen → Covalent Hydride The general reaction for alkali metal hydrides and water is given below: How was the water formed? For example, iron, which is placed higher in the activity series than copper, reacts with copper sulphate solution. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Copper oxide is then heated in the absence of air. Metals give hydrogen gas when they react with dilute acid. Reactivity Series of Metals: The order of intensity or reactivity of metal is known as Reactivity Series. Following is an example: Manganese dioxide and copper oxide are reduced to respective metals when heated with aluminium. Ionic compounds generally dissolve in water. 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