(c) heat zinc and copper strips. Four clean test tubes, marker, a piece of sand paper and test tube stand. (c) red and greenish-blue 20. The arrangement of metals in the decreasing order of their reactivity is called activity series of metals. CBSE Class 10 Science Lab Manual – Reactivity Series. They recorded their observations in the form of table given below: Which student noted the colour change in all the four test tubes correctly? 3. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals. > The atoms of the elements in the periodic table react with each other to form new compounds (except noble gases). each of four test tubes. (d) Copper is more reactive than Ag. If the atom readily loses electron at room temperature it is said to be reactive metal than the metal whose atom does not readily lose electron at the room temperature. Answer: I will react each metal (Mg, Fe and Cu) with the salt solutions of Mg, Fe and Cu. 18. > Reaction with Al2(SO4)3 solution: 14. Practical work: establish the reactivity order for lithium, magnesium and calcium by reacting similar size pieces with cold water. zinc rod in each solution and leaving it undisturbed for two hours, they noted the colour of each solution again. 3. Question 6: Reactivity of elements Aim 24. A more reactive metal will displace a less reactive metal from solution. Answer: 1. After some time, the colour of the solution changed from (c) The final solution becomes light green. Answer: Arrange the given metals in the reactivity series: (a) add more iron strips Other metals displace less reactive metals in a similar manner. Therefore, the reactivity of a metal is related to its ability to form positive ions. metal in experiments Which of the following reaction will not occur? These metals cannot displace hydrogen from acids and water.You can also download. The test tubes containing copper sulphate solution and ferrous sulphate solution could be the tubes: 31. Iron metal reacts with blue-coloured copper sulphate solution and changes it into green colour. Copper turnings were added to colourless salt solution. If the temperature of water, the amount of metal and the amount of water is kept constant, the rate of reactivity can be calculated. Question 6: Here we have given all the necessary details that a Chapter 4 Reactivity Series student should know about CBSE Class 10 Lab Manual. Use very little amount of saturated solution of copper sulphate, aluminium sulphate, iron sulphate and zinc sulphate. 2. In these reactions the metal atoms lose an electron to become a metal ion (being oxidised). (b) aluminium and copper It is found that a grey deposit forms on the zinc but not on the copper. Question 6: Take FeSO4 (aq) solution in each test tube. (d) Iron spoon will not show any change. See more ideas about Chemistry education, Chemistry lessons, Science chemistry. 20. (a) white Answer: Question 9: Zinc and magnesium. Answer: A metal’s reactivity can be worked out by studying its reactions in both the reactions to competition and displacement. Reactivity: Put: Potassium: K: As you can see these metals (excluding carbon, as carbon is used for the reduction of metal from metal oxide ore, all metals below carbon are reduced by it) are above hydrogen in the reactivity series so they react with acids and displace hydrogen gas. Four students A, B, C and D noted the initial colour of the solutions in test tubes I. II, III and IV. A + BX —> AX + B The decreasing order of reactivity for these metals follow the order: Observe the changes carefully as few reactions may occur slowly. 9. This series of simple experiments illustrates some of the chemical properties of the halogens following an introduction to the physical properties of the Group 17 elements. 16. What is the colour of copper sulphate solution? To show that zinc is more reactive than copper, the correct procedure is to (c) Equilibrium is seen. (b) R is removed from the compound and exists freely. He added 10 mL of freshly prepared ferrous sulphate solution to each test tube as shown below: (d) Mg + ZnSO4. > A more reactive metal will always displace a less reactive metal. What happens when A1 metal is added to copper sulphate solution? (d) Copper sulphate is blue and ferrous sulphate is green in colour. (a) all the four solutions changed. Non-metals in the reactivity series It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals. solution, the time required for the colour of the solution to change from blue to green will be less if: 6. 30. Answer: 1. Wash the test tubes after every set of observations of interaction of a particular metal with the four salt solution. Aluminium powder was added to a solution of copper sulphate. Reactivity series of metals and nonmetals are the lists, in which we arrange them in the decreasing order of their chemical activity. Hence, it is more reactive than copper metal. Chemicals required: Aluminium sulphate solution, copper sulphate solution, zinc sulphate solution, iron sulphate solution, metal strips of iron, zinc; copper and aluminium. (b) zinc and tin The colour of the solution and that of the metal would respectively be > Reaction with ZnSO4 solution: The reactivity series helps us to predict the capability of a metal to displace another metal during a displacement reaction. Take four clean test tubes, labelled as A, B, C, and D. Question 10: (d) Cu is the least reactive metal and can be displaced by all the metals given. Answer: As you can see these metals (excluding carbon, as carbon is used for the reduction of metal from metal oxide ore, all metals below carbon are reduced by it) are above hydrogen in the reactivity series so they react with acids and displace hydrogen gas. (d) blue to yellow. It is useful to place carbon and hydrogen into the reactivity series because these Give reason. (b) Zn + ZnSO4 (b) the lower end of the test tube becomes slightly warm. (b) Fe is less reactive than Al but more reactive than Cu. Mg, Zn, Cu, Fe, Al (c) a colourless gas with a smell of burning sulphur is observed. The colour of the coating obtained on a zinc rod on dipping in aqueous copper sulphate solution will be A few pieces of iron filings were then added to both the solutions. (b) Copper salt is blue in colour and aluminium salts are colourless. Thus, zinc is more reactive followed by iron and copper. Which one of the two metals is more reactive? 3. (d) copper sulphate solution only changed. BX is a salt of metal B. > Metal salts are coloured This is the displacement reaction seen among halogens. (Hint: Look at the dehydration reaction of copper sulphate) What happens when Fe (Iron) metal is added to blue colour copper sulphate solution? Answer: (a) I and II (b) I and III We can use the reactivity series to make predictions about the reactions of metals. The series is based on empirical data on the ability of a metal to displace hydrogen gas from water and acid. Strips of copper, iron, zinc and aluminium were introduced, each metal in a different test tube. 13. 11. Precautions 10. After a few minutes, it would be observed that the colour of A compound will always displace a less reactive metal from solutions of its compounds. Answer: 22. Hence, the arrangement of metals in decreasing reactivity order is 19. From these observations it can be concluded. 21. (d) it is heated. II. Add ZnSO4 solution in each test tube. (b) add more copper sulphate solution 4. 19. 7. As Zn and Al can displace Fe from its salt solution hence, Zn and A1 are more reactive than Fe but Cu is less reactive than Fe. reactivity series during these experiments. Question 4: 24. (d) Zinc and alufninium being more reactive will replace iron from iron sulphate. Do you see any difference in them? Name any two metals that are more reactive than iron. The four students A, B, C and D recorded their observations in the form of a table as given below. Sourabh Das 25/01/2014 Reactivity Series Experiment Pre-Lab Answers: 1. (c) Cu is less reactive than Zn. Aim: To examine the reactivity of metals with dilute hydrochloric acid Materials: 5 test tubes, dilute hydrochloric acid, magnesium, zinc, iron, lead, copper Method. 3. The reactivity series is the arrangement of elements according to their reactivity. Note: When metals react with nitric acid they do not release hydrogen gas (except magnesium and manganese) because nitric acid acts as a strong oxidizing agent. Answer: When a gas is formed in a reaction, it releases bubbles. Here, in the above reaction it is S042- ion. Activity series of some of the more common metals, listed in descending order of reactivity. The water droplets are collected on the inner part of the test tube. Pour equal amount of their aqueous solutions into the respective test tubes. The colour of the solution and that of the coating would respectively be (c) Aluminium salt is colourless and not green in colour. (b) Test tube with AgNO3 solution Hence, the blue colour of copper sulphate solution becomes colourless. In this article, we have discussed a step-by-step procedure to perform CBSE Class 10 Science Practicals experiment Reactivity Series. (a) Al + ZnSO4 The colour of copper sulphate solution is blue. ACTIVITY SERIES LAB (MICROSCALE) Purpose: to study the chemical activity of ... the six reagents you will be using in this part of the experiment: KNO 3, Mg(NO 3) 2, Zn(NO 3) 2, CuSO 4, AgNO 3, and distilled water. Answer: Mg > Al > Zn > Fe > Cu. Cu is unable to displace any metal among Al, Fe and Zn from their salt solutions, therefore Cu is least reactive. Theory: The reaction rate or rate of reaction for a reactant or product in a particular reaction is intuitively defined as how fast a reaction takes place. (a) A (b) B (c) C (d) D. 1. Question 1: What is the basic principle involved in this Experiment? Question 8: Question 7: Al and Zn metals can displace Fe metal from its salt solution but Cu cannot. What is the colour of iron sulphate solution? Fe(s) + CuSO4(aq) —> FeSO4(aq) + Cu(s). This is a lesson investigating the reactivity of 4 metals. 1. Al > Zn > Fe > Cu. 13. (a) the green solution slowly turns blue. 32. Aim: To investigate and see the reaction of four metals- magnesium, zinc, aluminium and iron with copper sulphate to find out which one is the most reactive and which one the least reactive.. Question 3: Due to the displacement reaction the blue colour of copper sulphate changes to green colour of iron sulphate. Why is Fe metal more reactive than copper metal? > Hence the displacement reaction is used to arrange the metals in the reactivity series. (c) As per reactivity series. (b) Cu is displaced by Zn which is brown in colour. FeSO4 solution in each test tube. Iron + Zinc sulphate —> No reaction. Use very small pieces of metal every time. (a) soft and dull. The right pair of metals forming the precipitates is Copper is less reactive than iron and cannot displace iron from iron sulphate solution and there is no colour change. (d) heat iron and add in copper sulphate. Hence, the reactivity order is Al > Zn. This observational exercise allows the metals to be placed in series depending on their reactivity. Reactivity of Metals Experiment. Question 2: Watch out for the latest updates on NCERT Books, NCERT Solutions, CBSE Sample Papers, RS Aggarwal Solutions and all resources that we share regularly on CBSETuts.com for K12 Students. More Resources CBSE Class 10 Lab Manual Practical Skills: Kerala Syllabus 9th Standard Physics Solutions Guide, Kerala Syllabus 9th Standard Biology Solutions Guide, NCERT Class 10 Science Lab Manual – Reactivity Series, NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.5, NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.4, NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.3, NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.2, NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Ex 5.2, NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations Ex 4.4, NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations Ex 4.3, NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations Ex 4.2, NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.4, NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3, NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2, NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.7, NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.6, NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5, NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.4, Colourless solution changes to light green, Colourless solution changes to light blue. We hope this CBSE Class 10 Science Lab Manual Reactivity Series helps you in your preparation for CBSE Class 10 Board Examination. Al2(SO4)3 solution in each test tube. Question 2: When this layer is removed, the observations are more reliable. To determine the position of Element X in the reactivity series. Watch this video to show you how to work out the reactivity Series of the metals. Physical properties of metals METALS Solid state at room temp Shiny appearance High density Good heat conductors Good conductors of electricity High Melting and Boiling point Ductile and malleable Strong and tough Except Mercury (Liquid) Due to strong forces (metallic) except Mercury and alkali … Take test tubes A, B, C, and D, clean them. (b) hard and flaky. 1. (a) I and III (b) II and IV Your email address will not be published. Dip small, clean pieces of aluminium, zinc, iron and copper metals in test tube A, B, C and D respectively. (a) In first two test tubes, the metal will not react but in other two it will react. 4. (d) Zn and Al are more reactive than Fe and can displace it. For any questions pertaining to CBSE Class 10 Science Practicals Reactivity Series Material, feel free to leave queries in the comments section. Answer: (c) Cu + ZnSO4 Hence, Cu is the least reactive metal among the given four metals. A more reactive metal can displace a less reactive metal from its salt solution or compounds. Answer: 8. This is a reliable technique used, because aluminium is actually a reactive metal but due to the protective coating of aluminium oxide on it, the results may show that aluminium’s reactivity rate is slow. Displacement reactions Look at the reaction below: /**/ Here, we witness iron and copper competing to be compounds in solution. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals. Conclusion: Al metal is not displaced by any of the given metals i.e. (a) Fe displaces copper ions. Al, Zn, Fe and Cu. Answer: (d) All tests will help in identifying the solutions. Why did the colour of copper (II) sulphate solution, change, when zinc metal was dipped in it? 2:15 understand how metals can be arranged in a reactivity series based on their reactions with: water and dilute hydrochloric or sulfuric acid Theory (c) first add Zn and then A1 in test tubes A and B Name one metal which when added to blue CuSO4 solution changes it to green colour. To identify the solutions, 2. It is used to summarize information about the reactions of metals with acids and water, single displacement reactions and the extraction of metals from their ores On adding iron strip in copper sulphate solution, the reaction takes long time, to make it happen fast we can: 31. Metals - Reactivity Series 1. Students work in CBSE Class 10 Science Practical Skills – Reactivity Series. (d) Fe will displace Cu ions to give green colour solution and Cu metal is brown coated. (d) Test tube with FeSO4 solution. Take test tubes A, B, C, and D and clean them. It is regarded that each molecule of copper sulphate crystals at room temperature contains five water molecules as water of crystallisation. (c) P displaces Q The resource is set out as teachers' notes followed by the students' page which presents the task to be investigated. Add Al2(SO4)3 solution in each test tube. 21. In this classic experiment, from the Royal Society of Chemistry, students initially observe aluminium not reacting with copper sulphate due to the oxide layer on the surface of the aluminium. (b) it is shaken What happens when a piece of zinc metal is introduced into a freshly prepared solution of ferrous sulphate? (c) blue (d) brown. The most reactive element is placed at the top and the least reactive at the bottom. Hence, displacement reaction will occur. > For example, iron is less reactive than zinc. Record your observations. 2. Hence, Al metal is the most reactive metal among the given metals. As only Al metal displaces Zn from its salt solution hence, Al is the most reactive metal among Al, Zn, Fe and Cu. Developing the Activity Series. 18. Conclusion: Al, Zn and Fe metals are more reactive than Cu. Answer: In the following reaction, A and B are metals. (iii) Salt solution ZnSO4. A more reactive metal displaces (pushes out) a less reactive metal from its compound. 4. (c) solution of ZnSO4 and Al2(SO4)3 only changed. (b) solution of ZnSO4, CuSO4 and Al2(SO4)3 changed and that of FeSO4 did not change. 2. Metal A is more reactive than B, because metal A displaces metal B from its salt solution. (b) green And a shiny metal deposition appears when added to blue to predict the of. > metal salt solution, it would be observed that blue colour of copper iron! 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Redox reactions and Extraction of metals in decreasing order of reactivity based on Reporting and Interpretation,... 5: What is the basic principle involved in this experiment non-metal anion series shows metals be arranged the... > the arrangement of metals and nonmetals are the lists, in of! - including their equipment list, method and analysis of results you How to work out the reactivity order Lithium... Solution CuSO4 a table as given below during a displacement reaction to.... The displacement reaction the blue colour copper sulphate solution, reactivity series experiment practical, Al2 ( ). + CuSO4 ( aq ) + Cu ( s ) + CuSO4 ( aq ) — > FeSO4 ( ). But zinc reacts with ferrous sulphate is green and when zinc metal is added to an aqueous solution of and! One from its compound analysis of results less reactive metals in decreasing downwards. Reactive than copper metal reaction, metals lose electrons to form positive ions Al Zn! 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Displace elements below them from their salt solutions of Mg, Fe, Cu and Fe metals are reactive! Sodium hydroxide + hydrogen can not react with iron sulphate or activity series metals. Copper strip in FeSO4 solution different colours marked I, II, III, and d clean... Cu is less reactive metal from its solution feel free to leave queries in the above result hope... Metals is more reactive will replace iron from iron sulphate was taken two. Oxygen in air using a metal ion ( being oxidised ) metals can be displaced by Zn is. 10 board Examination then added to a solution of ZnSO4, CuSO4 and Al2 ( SO4 ) 3 changed. Causes a vigorous displacement reaction be no reaction will take place, Fe. In solutions there are a number of ways that you could investigate a displacement rractivity piece of sand paper dipping. Hydrogen gas from water and acid a, b, c, and IV as shown below a compound another. For the non-metal anion displace any metal among the given metals, therefore Al is most active metal by. Metal and can not principle involved in this experiment, a piece of sulphate... Zinc was dropped into copper sulphate solution it the colour of copper sulphate crystals at room temperature five! Introduced into a freshly prepared solution of copper sulphate ions to give green colour of sulphate... Holes in it taken in two of them 's board `` reactivity series, is... Nail is dipped in it Cu and Al are more reliable, listed in descending order of reactivity the series... And Heat is evolved other metal could displace it > this is a series of metals, order!