Four students were assigned separately the experiment of interaction of an iron nail with a solution of copper sulphate. When we add Fe in FeSO4 solution, no change is seen. (c) smooth and shining 22. 30. The decreasing order of reactivity for these metals follow the order: Observe the changes carefully as few reactions may occur slowly. Copper is less reactive than iron and cannot react with iron sulphate. Hence, the blue colour of copper sulphate solution becomes colourless. FeSO4 solution in each test tube. In case of halogens, more reactive non-metal will displace the less reactive one from its place. Mg > Al > Zn > Fe > Cu. (d) Zinc salt solutions are colourless. Iron metal reacts with blue-coloured copper sulphate solution and changes it into green colour. Four students A, B, C and D noted the initial colour of the solutions in test tubes I. II, III and IV. What is the right observation? (a) the copper strip remained as it was 2. On heating copper sulphate crystals the blue colour of copper slowly changes to light blue and then colourless. > Reaction with ZnSO4 solution: Here we have given all the necessary details that a Chapter 4 Reactivity Series student should know about CBSE Class 10 Lab Manual. Chlorine is toxic [1]. Answer: 3. Which of the following reaction will take place? 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. The colour of the solution and that of the coating would respectively be The metal that will displace two metal ions from the salt solutions will be the most reactive and the one which will not show any colour change in the solutions is the least reactive. To identify the solutions, 4. Your email address will not be published. Adding sodium chloride causes a vigorous displacement reaction to occur. Conclusion: Al metal is not displaced by any of the given metals i.e. Some metals are more reactive than others. 21. Aim Why displacement reaction? Hence, the reactivity order is Al > Zn. Question 2: (c) I, II, III (d) II, III, IV. You would observe the deposition of metal on zinc in test tubes 30. The reactivity series helps us to predict the capability of a metal to displace another metal during a displacement reaction. 6. (c) silver and aluminium (a) II, III (b) I, III A more reactive metal will displace a less reactive metal from solution. Due to the displacement reaction the blue colour of copper sulphate changes to green colour of iron sulphate. A student took Cu, Fe, Zn and Al strips separately in four test tubes labelled I, II, III and IV respectively. Question 4: Al and Zn metals can displace Fe metal from its salt solution but Cu cannot. (a) Copper and zinc What is the basic principle involved in this Experiment? ZnSO4 solution in each test tube. II. There is an interactive version to use with the class. (b) Fe is less reactive than Al but more reactive than Cu. 20. Reactivity series and displacement reactions A worksheet that tests students confidence with the reactivity series by asking them to work with some displacement reaction equations. Other metals displace less reactive metals in a similar manner. (c) Aluminium salt is colourless and not green in colour. Answer: Which one is not observed when aluminium is added to a solution of copper sulphate? 21. 2. What happens when a piece of zinc metal is introduced into a freshly prepared solution of ferrous sulphate? 29. 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. (a) A (b) B (c) C (d) D. 1. > The arrangement of metals in decreasing order of their reactivity is called reactivity series or activity series of metals. Chlorine is more reactive than iodine and hence it displaces iodide ion. Fe is unable to displace Zn from its salt solution, whereas Zn is able to displace Fe from its salt solution, therefore Zn is more reactive than Fe. When a gas is formed in a reaction, it releases bubbles. Reactivity series 10 mL of freshly prepared iron sulphate was taken in Take four test tubes and label them as ZnSO. This is a lesson investigating the reactivity of 4 metals. > Metals: The atoms of metal will always lose electrons to form positive ions called cations. (c) Equilibrium is seen. (c) Test tube with ZnSO4 solution 13. It will help you understand the reaction of metals such as zinc, aluminium, copper, and iron with aqueous salt solutions of aluminium sulphate, copper sulphate, ferrous sulphate, and zinc sulphate. Answer: The colour of the coating obtained on a zinc rod on dipping in aqueous copper sulphate solution will be > Copper (II) sulphate is blue in colour. (d) zinc and aluminium. 11. Practical applications of the series are prediction of double displacement reactions involving two metals and the extraction of metals from their ores. 25. Al, Zn, Fe and Cu. Metal + Acid —> Metal salt + Hydrogen. The most reactive metal displaces the less reactive metal from its salt solution. 4. Arrange the given metals in the reactivity series: > Metal salts are coloured 1. 10. Reactivity Series Of Metals Class 10 Introduction 7. (d) Zinc and alufninium being more reactive will replace iron from iron sulphate. 13. Question 2: (a) the green solution slowly turns blue. 4. (b) brown and blue (d) it is heated. Whereas zinc is more reactive than iron and hence it can react with iron sulphate. The elements at the top can displace elements below them from their compounds. I. CuSO4 solution in each test tube. Practical Based Questions PBQs based on every experiment with their answers, covering Previous Years’ Questions, are provided experiments for complete coverage of concepts Web support By performing the experiments, students will know the concept in a better way as they can now view the changes happening in front of their eyes. How can you test that a given sample contains water or not? 26. We can use the reactivity series to make predictions about the reactions of metals. (d) copper sulphate solution only changed. 24. Principle: The most reactive metal will displace the less reactive metal. The colour of ferrous sulphate solution is green and when zinc is added to it the colour fades and becomes colourless. Wash your hands properly after the experiment. 2. A powerpoint presentation and practical worksheet to support the learning of part of the AQA (from 2015) specification on Acids and Metals. Aim: To examine the reactivity of metals with dilute hydrochloric acid Materials: 5 test tubes, dilute hydrochloric acid, magnesium, zinc, iron, lead, copper Method. A metal’s reactivity can be worked out by studying its reactions in both the reactions to competition and displacement. 2:14 Practical: determine the approximate percentage by volume of oxygen in air using a metal or a non-metal (d) Reactivity series. Question 8: Al can displace Zn from its salt solution but no other metal could displace it. Wash the test tubes after every set of observations of interaction of a particular metal with the four salt solution. (Hint: Look at the dehydration reaction of copper sulphate) (c) P displaces Q What happens when Fe (Iron) metal is added to blue colour copper sulphate solution? A few pieces of iron filings were then added to both the solutions. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals. (a) add more iron strips Building the reactivity series During a reaction, metals lose electrons to form positive ions. CBSE Class 10 Science Lab Manual – Reactivity Series. The water loses oxygen (is reduced). (a) it is cooled Al2(SO4)3 solution in each test tube. Question 6: (a) prepare copper sulphate solution and dip a zinc strip in it. (c) heat the container of reactants (d) blue to yellow. (d) Iron is less reactive than Zn. 5. Procedure (b) solution of ZnSO4, CuSO4 and Al2(SO4)3 changed and that of FeSO4 did not change. (d) colourless. Black residue would be obtained in test tubes: 9. Practical work: establish the reactivity order for lithium, magnesium and calcium by reacting similar size pieces with cold water. I will react each metal (Mg, Fe and Cu) with the salt solutions of Mg, Fe and Cu. He would find the formation of solid deposition on As Al, Zn and Fe can displace Cu from its salt solution hence, all three are more reactive than Cu. 1. Answer: 1. He added 10 mL of freshly prepared ferrous sulphate solution to each test tube as shown below: > Reaction with Al2(SO4)3 solution: Reactivity of elements The test tubes containing copper sulphate solution and ferrous sulphate solution could be the tubes: 31. Question 1: 14. Which of the following reaction will not occur? 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. Theory 16. Answer: Name some metals that will react with aluminium sulphate solution, i.e., Al2(SO4)3. When a few crystals of copper sulphate are dissolved (d) Iron is most active metal followed by copper and then zinc. (a) light green to blue 8. Metal A is more reactive than B, because metal A displaces metal B from its salt solution. When you place iron nail in copper sulphate solution, the reddish brown coating formed on the nail is Activity series of some of the more common metals, listed in descending order of reactivity. Take copper sulphate solution in each test tube. (c) iron and aluminium (b) Zinc is more reactive than Cu and Fe. Metals lying below hydrogen in reactivity series are less reactive than hydrogen. In chemistry, a reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest. Question 3: (b) green Record your observations. (b) prepare copper sulphate solution and dip a copper strip in it. Question 3: (a) all the four solutions changed. (a) In first two test tubes, the metal will not react but in other two it will react. Take FeSO4 (aq) solution in each test tube. (a) I and III (b) II and IV 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. (d) A brown mass is deposited on the surface of aluminium. 2. Why did the colour of copper (II) sulphate solution, change, when zinc metal was dipped in it? 15. Question 14: As only Al metal displaces Zn from its salt solution hence, Al is the most reactive metal among Al, Zn, Fe and Cu. 23. Question 4: Experiment: Metal Reactivity with Acids samabrhms11 2019-06-02T16:23:11+01:00 Specification Point 2.21: Practical: Investigate reactions between Dilute Hydrochloric and Sulfuric Acids and Metals (e.g. Name one metal which when added to blue CuSO4 solution changes it to green colour. It can be done as a demonstration or as a class experiment. CBSE Class 10 Science Practical Skills – Reactivity Series. Chemicals required: Aluminium sulphate solution, copper sulphate solution, zinc sulphate solution, iron sulphate solution, metal strips of iron, zinc; copper and aluminium. 8. (a) add Zn in test tube A and B Question 7: The blue colour of the crystals is due to these five water molecules. > For example, in a given chemical reaction: Answer: (a) Fe + FeSO4 (d) Mg is more reactive than Zn. The resource is set out as teachers' notes followed by the students' page which presents the task to be investigated. Answer: Answer: (d) light green solution changes to blue. (c) Increase in temperature speeds up the reaction. Metals can be arranged on the basis of relative reactivity. Hence, Cu is the least reactive metal among the given four metals. (d) All tests will help in identifying the solutions. Solutions of FeSO4, ZnSO4, CuSO4 and Al2(SO4)3 solutions were separately taken in four test tubes and some iron nails were placed in each of the solutions. (d) Cu is the least reactive metal and can be displaced by all the metals given. Why is Fe metal more reactive than copper metal? Question 10: Strips of copper, iron, zinc and aluminium were introduced, each metal in a different test tube. (d) rough and granular. Do not touch any chemical. 24. Place about 5cm depth of the acid in each of the five test tubes; Place a small piece of each of the three metals above. Answer: 19. The correct set of observations have been recorded by student (a) A (b) B (c) C (d) D. 32. (d) zinc and aluminium. Metals which lie above hydrogen in reactivity series are more reactive than hydrogen. (c) Cu + ZnSO4 The colour of copper sulphate solution is blue. With a marker label them as A, B, C and D. (c) II and III (d) III and IV. 18. (d) Copper is more reactive than Ag. 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