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. (c) blue (d) brown. 7. 2. Iron filings were added to a solution of copper sulphate. (a) II, III (b) I, III 8. It can be done as a demonstration or as a class experiment. (ii) Arrange Zn, Fe, Cu and Al metals in the decreasing order of reactivity based on the above result. 11. Why? > Reaction with CuSO4 solution: 5. 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. (a) ZnSO4(aq.) (c) it is kept undisturbed 7. (a) add Zn in test tube A and B Practical applications of the series are prediction of double displacement reactions involving two metals and the extraction of metals from their ores. In the following reaction, A and B are metals. zinc rod in each solution and leaving it undisturbed for two hours, they noted the colour of each solution again. Other metals displace less reactive metals in a similar manner. Reactivity of Metals Experiment. CBSE Maths notes, CBSE physics notes, CBSE chemistry notes. > A more reactive metal will always displace a less reactive metal. The decreasing order of reactivity for these metals follow the order: Observe the changes carefully as few reactions may occur slowly. Record your observations. Record your observations. The reactivity series is a series of metals, in order of reactivity from highest to lowest. 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 … A compound will always displace a less reactive metal from solutions of its compounds. (d) Ferrous salts are green. Iron metal reacts with copper sulphate solution to displace copper and form iron sulphate that is green in colour. What is the colour of copper sulphate solution? These elements are below hydrogen so they do not react with acids. 17. 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. (c) Iron is most active metal followed by zinc and then copper. A black residue was obtained in two of them. Al is able to displace Fe, Cu and Zn from their salt solutions, therefore Al is most reactive. Question 11: 4. 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. (c) the copper strip became thicker The four students A, B, C and D recorded their observations in the form of a table as given below. (d) green and reddish-brown. (b) add A1 in test tube A and B On heating copper sulphate crystals the blue colour of copper slowly changes to light blue and then colourless. (d) Heat increases the rate of reaction. Question 1: Dip small, clean pieces of aluminium, zinc, iron and copper metals in test tube A, B, C and D respectively. Practical work: establish the reactivity order for lithium, magnesium and calcium by reacting similar size pieces with cold water. 20. 25. Chemicals required: Aluminium sulphate solution, copper sulphate solution, zinc sulphate solution, iron sulphate solution, metal strips of iron, zinc; copper and aluminium. Al metal reacts with copper sulphate solution to form aluminium sulphate and copper metal is displaced. The students have to then write their investigation up - including their equipment list, method and analysis of results. Take copper sulphate solution in each test tube. The colour of zinc sulphate solution is Which one is not observed when aluminium is added to a solution of copper sulphate? Question 5: 3. Question 8: The water droplets are collected on the inner part of the test tube. After 10 minutes it was observed that the colourless solution turned to a coloured solution and a shiny metal deposition appears. This is a two-lesson bundle that guides students through planning an investigation into the reactivity of different metals and then carrying out their experiment. The colour of the coating obtained on a zinc rod on dipping in aqueous copper sulphate solution will be (a) yellow and Zn (b) green and Fe (c) red and Sn (d) blue and Ag. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals. (c) smooth and shining > Reaction of Metals with Salt Solution 27. 19. (d) zinc and aluminium. Students should learn about the reactions of metals and are expected to be able to place metals in order of reactivity based on simple experiments such as the reactions of metals with water and acids and also displacement reactions between metals and solutions containing the ions of other metals. (i) To observe the action of Zn, Fe, Cu and Al metals on the following salt solutions: Note Making Class 11 CBSE Format, Examples, Unseen Passage For Class 11 Literary CBSE With Answers, Unseen Passage for Class 11 Discursive CBSE with Answers, Unseen Passage for Class 11 Factual CBSE With Answers, Rearrange Jumbled Sentences for Class 11 CBSE with Answers, Error Correction Exercises for Class 11 CBSE with Answers, Sentence Transformation Exercises for Class 11 CBSE with Answers, Editing Exercises for Class 11 CBSE with Answers, Active and Passive Voice Exercises for Class 11 with Answers CBSE, Tenses Exercises for Class 11 CBSE With Answers. 4. (d) Cu is the least reactive metal and can be displaced by all the metals given. In the beaker A is placed a small piece of copper and in the beaker B is placed a small piece of zinc. 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. 4. When an aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is Take four clean test tubes. Answer: (d) Both are more reactive than Fe. Students work in 23. 4. Black residue would be obtained in test tubes: Question 9: Hence, the blue colour of copper sulphate solution becomes colourless. (a) all the four solutions changed. The reactivity series is also known as the activity series of metals. 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. 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. Add ZnSO4 solution in each test tube. Question 3: 5. I. CuSO4 solution in each test tube. Question 3: (b) add more copper sulphate solution He would find the formation of solid deposition on 15. Questions based on Reporting and Interpretation Skills, 28. It is also known as the activity series. Clean the metals by rubbing them with a piece of sand paper before dipping them in the salt solutions. > Non-Metals: The atoms of non-metals gains or shares electrons to form negative ions called anions, the atoms of non-metals if readily gains electrons it is said to be more reactive. (a) colourless to blue Metals like calcium, sodium and magnesium will react with aluminium sulphate solution. In a more vigorous reaction, … (d) add dilute nitric acid on both the strips. (c) light green to colourless We hope this CBSE Class 10 Science Lab Manual Reactivity Series helps you in your preparation for CBSE Class 10 Board Examination. (c) II and III (d) III and IV. (d) the colour of the strip changed. 16. 9. (c) The final solution becomes light green. (a) Fe displaces copper ions. The elements at the top can displace elements below them from their compounds. What happens when A1 metal is added to copper sulphate solution? (c) first add Zn and then A1 in test tubes A and B Activity series of some of the more common metals, listed in descending order of reactivity. (a) copper and zinc 3. A more reactive metal can displace a less reactive metal from its salt solution or compounds. (a) Zinc is most active metal followed by iron and copper. > The atoms of the elements in the periodic table react with each other to form new compounds (except noble gases). (d) copper sulphate solution only changed. (b) Zinc is more reactive than Cu and Fe. Al2(SO4)3 solution is colourless. Add Al2(SO4)3 solution in each test tube. With a marker label them as A, B, C and D. Take four clean test tubes, labelled as A, B, C, and D. (a) Q displaces P 29. > Reaction with FeSO4 solution: (ii) Salt solution FeSO4. On adding iron strip in copper sulphate solution, the reaction takes long time, to make it happen fast we can: > For example, iron is less reactive than zinc. Dip small, clean pieces of Al, Zn, Fe and Cu metal in test tubes A, B, C and D respectively. Conclusion: Al, Zn and Fe metals are more reactive than Cu. (c) I, II, III (d) II, III, IV. 29. Students will investigate competition reactions of metals and determine a reactivity series of the four metals used. (a) the copper strip remained as it was > A more reactive metal will displace (take the place of) a less reactive metal in a metal salt solution. To observe the action of Zn, Fe, Cu and Al metals on the following salt solutions: Arrange Zn, Fe, Cu and A1 metals in the decreasing order of reactivity based on the above result. (c) As per reactivity series. (c) a colourless gas with a smell of burning sulphur is observed. (d) A brown mass is deposited on the surface of aluminium. Question 5: Iron metal reacts with blue-coloured copper sulphate solution and changes it into green colour. 2. Add a small strip of Al foil to each of the test tubes. The water loses oxygen (is reduced). 24. Answer: Copper is less reactive than iron and cannot displace iron from iron sulphate solution and there is no colour change. (c) heat the container of reactants 10. 2. Name the least reactive metal among the following: Fe, Zn, Al. (b) Fe is less reactive than Al but more reactive than Cu. Question 4: 2. (b) Test tube with AgNO3 solution (a) Zinc sulphate will become green. in water, the colour of the solution obtained would be: > In displacement reactions, the metals compete for the non-metal anion. (a) Copper and zinc Answer: When this layer is removed, the observations are more reliable. Al > Zn > Fe > Cu. To determine the position of Element X in the reactivity series. A piece of granulated zinc was dropped into copper sulphate solution. (d) Zn and Al are more reactive than Fe and can displace it. (b) Zinc salt solutions are not coloured. Question 6: Aluminium sulphate and copper sulphate solutions were taken in two test tubes I and II respectively. A student performed the following four experiments: There is an interactive version to use with the class. (a) I and II (b) I and III Fe(s) + CuSO4(aq) —> FeSO4(aq) + Cu(s). (d) All tests will help in identifying the solutions. (c) Aluminium salt is colourless and not green in colour. Aluminium powder was added to a solution of copper sulphate. 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. Answer: (a) Test tube with CuSO4 solution 3. Question 7: (c) silver and aluminium (b) solution of ZnSO4, CuSO4 and Al2(SO4)3 changed and that of FeSO4 did not change. Why can we safely preserve iron (II) sulphate in a copper vessel whereas the same can’t be safely preserved in zinc vessel? These metals cannot displace hydrogen from acids and water.You can also download. (Hint: Look at the dehydration reaction of copper sulphate) Adding sodium chloride causes a vigorous displacement reaction to occur. Record your observations. (b) Cu is displaced by Zn which is brown in colour. Question 4: > Reactivity series: The arrangement of metals in decreasing order of their reactivity is called reactivity series. (b) Zinc is most active metal followed by copper and then iron. 3. What is the colour of Al2(SO4)3 solution? (c) Test tube with ZnSO4 solution Displacement Reactions - The Reactivity Series This activity investigates the reactions between powdered metals (magnesium, copper, iron, zinc) and the solutions (magnesium sulphate, copper sulphate, iron sulphate, zinc sulphate). (a) Copper is less reactive than zinc. 16. > Metals: The atoms of metal will always lose electrons to form positive ions called cations. (Acids contain H+ ions). Question 2: 10 mL of freshly prepared iron sulphate was taken in (b) hard and flaky. 13. > Copper (II) sulphate is blue in colour. Fe readily loses electrons as compared to copper. (d) Copper sulphate is blue and ferrous sulphate is green in colour. Metals can be arranged on the basis of relative reactivity. Which one of the two metals is more reactive? Copper is less reactive than iron and cannot react with iron sulphate. If the temperature of water, the amount of metal and the amount of water is kept constant, the rate of reactivity can be calculated. In this article, we have discussed a step-by-step procedure to perform CBSE Class 10 Science Practicals experiment Reactivity Series. (d) it is heated. Metals - Reactivity Series 1. The most reactive element is placed at the top and the least reactive at the bottom. 20. 26. (a) Fe + FeSO4 Complete the given chemical equation Fe(s) + CuSO4(aq) —> (a) yellow and green Pour equal amount of their aqueous solutions into the respective test tubes. 18. Use very little amount of saturated solution of copper sulphate, aluminium sulphate, iron sulphate and zinc sulphate. Iron spoon was placed in a glass container holding zinc sulphate solution. This observational exercise allows the metals to be placed in series depending on their reactivity. (d) Copper is more reactive than Ag. In one molecule of copper sulphate, five water molecules are present to form crystal. (a) blue (b) brown (c) Increase in temperature speeds up the reaction. (a) add more iron strips 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. (d) heat iron and add in copper sulphate. Answer: (a) soft and dull. Materials Required Mg, Zn, Cu, Fe, Al Hence, it is more reactive than copper metal. Developing the Activity Series. reactivity series during these experiments. After 10 minutes, it was observed that blue colour of the solution changes and a layer gets deposited on iron filings. BASIC BUILDING CONCEPTS. (d) Al2(SO4)3(aq.) We can use the reactivity series to make predictions about the reactions of metals. (d) light green solution changes to blue. (b) R is displaced by P 2. Some metals are more reactive than others. (b) Glass container will get cracks. calcium + water ==> calcium hydroxide + hydrogen. It is useful to place carbon and hydrogen into the reactivity series because these Name any two metals that are more reactive than iron. 2. > For example, in a given chemical reaction: Watch this video to show you how to work out the reactivity Series of the metals. (a) A (b) B (c) C (d) D. 1. 1. For any questions pertaining to CBSE Class 10 Science Practicals Reactivity Series Material, feel free to leave queries in the comments section. (d) Mg + ZnSO4. > If a less reactive metal is added to a more reactive metal salt solution then there will be no reaction. Metals which lie above hydrogen in reactivity series are more reactive than hydrogen. Question 12: Hypothesis. Which of the following reaction will not occur? (d) Fe will displace Cu ions to give green colour solution and Cu metal is brown coated. (c) I and II (d) III and IV. 1. (b) aluminium and copper Answer: It is regarded that each molecule of copper sulphate crystals at room temperature contains five water molecules as water of crystallisation. Take FeSO4 (aq) solution in each test tube. In this experiment, a strip of metal is added to a solution of a compound of another metal. Question 8: P + QR → PQ + R. In the above reaction, (a) green (b) red Two metals which can displace iron from its solution are: sodium + water ==> sodium hydroxide + hydrogen. Answer: Hence, the arrangement of metals in decreasing reactivity order is Exception: Copper reacts with concentrated nitric acid, the nitrate ions oxidize copper. (c) Iron spoon will get holes in it. > To arrange the metals in the increasing or decreasing order of their reactivity one of the commonly used experiment is by checking their displacement rate. 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. Iron + Zinc sulphate —> No reaction. (d) Iron is less reactive than Zn. (b) it is shaken 26. (c) Au + FeSO4 What is the colour of iron sulphate solution? 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. Answer: Arrange the given metals in the reactivity series: Metal + Acid —> Metal salt + Hydrogen. From CBSE Science practical to Lab manual, project work, important questions and CBSE lab kit manual, all the information is given in the elaborated form further in this page for Chapter 4 Reactivity Series students. Reactivity series Question 1: 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 Reactivity series of metals and nonmetals are the lists, in which we arrange them in the decreasing order of their chemical activity. Fe(s) + CuSO4(aq) —> FeSO4(aq) + Cu(s). Zinc is more reactive than copper and displaces copper from its solution. (c) red and greenish-blue A metal’s reactivity can be worked out by studying its reactions in both the reactions to competition and displacement. The colour of the solution and that of the coating would respectively be 9. Specified practical – metal displacement reactions Displacement in solutions There are a number of ways that you could investigate a displacement rractivity. (a) blue to pale green (b) blue to dark green (c) blue to colourless (d) blue to reddish-brown. (b) FeSO4(aq.) 2:15 understand how metals can be arranged in a reactivity series based on their reactions with: water and dilute hydrochloric or sulfuric acid Observe the changes and record your observations. (c) heat zinc and copper strips. 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: Four clean test tubes, marker, a piece of sand paper and test tube stand. What is the activity series of metals? When an iron strip was placed in the copper sulphate The colour of ferrous sulphate solution is green and when zinc is added to it the colour fades and becomes colourless. Here we have given all the necessary details that a Chapter 4 Reactivity Series student should know about CBSE Class 10 Lab Manual. It is because Fe does not react with FeSO4 solution. When a gas is formed in a reaction, it releases bubbles. From these observations it can be concluded. 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. Reactivity Series, Redox Reactions and Extraction of Metals. The water is therefore the oxidising agent. (b) The final solution becomes colourless. Question 1: A student added a piece of zinc metal in four different test tubes containing different solutions. Thus, zinc is more reactive followed by iron and copper. 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. Mar 26, 2020 - Explore Arif's board "reactivity series" on Pinterest. Hence, Cu is the least reactive metal among the given four metals. Magnesium, Zinc and Iron) > Metal salts are coloured Tie-ins include single-replacement reactions (SRR), oxidation-reduction, practical applications such as galvanization, and predicting reactions. The right pair of metals forming the precipitates is 30. Answer: Green iron II sulphate is formed. No reaction will take place, as Fe metal is less reactive than Zn. Al2(SO4)3 solution in each test tube. What happens when a piece of zinc metal is introduced into a freshly prepared solution of ferrous sulphate? (a) Copper does not react, but zinc reacts with ferrous sulphate solution. 8. 3. Which of the following reaction will take place? Why does the following reaction takes place? Al and Zn metals can displace Fe metal from its salt solution but Cu cannot. 13. (d) colourless. (d) Iron is most active metal followed by copper and then zinc. Answer: Non-Metal Displacement Reactions Zinc granules were added to zinc sulphate, copper sulphate, aluminium sulphate and iron sulphate solutions as shown below. Why displacement reaction? Answer: Dip a small, clean piece of aluminium, zinc, iron and copper metals in test tubes A, B, C and D respectively. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals. Some: Sodium: Na: Light: Lithium: Li: Color Answer: When you place iron nail in copper sulphate solution, the reddish brown coating formed on the nail is Four students A, B, C and D noted the initial colour of the solutions in test tubes I. II, III and IV. Question 5: 14. 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. 25. What is the right observation? > Hence the displacement reaction is used to arrange the metals in the reactivity series. Fe is the least reactive metal among Fe, Zn, and AT. (d) R displaces Q. Answer: 12. Dip small, clean pieces of Al, Zn, Fe and Cu metal in test tube A, B, C and D respectively. A + BX —> AX + B (b) the copper strip became thinner Al can displace Zn from its salt solution but no other metal could displace it. Wash your hands properly after the experiment. They recorded their observations in the form of table given below: Which student noted the colour change in all the four test tubes correctly? The iron nail reacts with copper sulphate displace copper and form iron sulphate . 22. Zinc and magnesium. Due to the displacement reaction the blue colour of copper sulphate changes to green colour of iron sulphate. The series is based on empirical data on the ability of a metal to displace hydrogen gas from water and acid. 31. Therefore, the reactivity of a metal is related to its ability to form positive ions. 24. (c) CuSO4 (aq.) Answer: 2:14 Practical: determine the approximate percentage by volume of oxygen in air using a metal or a non-metal (d) Reactivity series. Wash the test tubes after every set of observations of interaction of a particular metal with the four salt solution. Strips of copper, iron, zinc and aluminium were introduced, each metal in a different test tube. (b) blue to colourless (b) brown and blue What will happen if Fe metal is added to ZnSO4 solution? 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. Metal Displacement Reactions The reactivity series helps us to predict the capability of a metal to displace another metal during a displacement reaction. Chlorine is toxic [1]. A few pieces of iron filings were then added to both the solutions. Question 7: What is your observation when copper is added in iron (II) sulphate solution? Iron wins as it displaces copper from copper sulphate solution. (c) Cu is less reactive than Zn. Hence, the reactivity order is Al > Zn. (a) it is cooled (iii) Salt solution ZnSO4. Iron filings were added to an aqueous solution of copper sulphate. Answer: 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. The colour of the solution and that of the metal would respectively be Which group of students recorded the observations correctly? (b) green Answer: The colour of iron sulphate solution is green. You would observe the deposition of metal on zinc in test tubes Hydrogen which is a non-metal is also placed in reactivity series. Conclusion: Al metal is not displaced by any of the given metals i.e. Overview: The students will develop their own activity series of metals based on lab results. Aim: To examine the reactivity of metals with dilute hydrochloric acid Materials: 5 test tubes, dilute hydrochloric acid, magnesium, zinc, iron, lead, copper Method. Add Fe in FeSO4 solution, i.e., Al2 ( SO4 ) solution! 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