why does chlorine gas bleaches litmus paperangola high school calendar

Relights a glowing splint. Date posted: February 10, 2017 . For instance, chlorine gas turns blue litmus paper white - the … (a) Write an equation for the reaction between chlorine gas and sodium hydroxide solution ... State and explain the observations that would be made if a moist blue litmus paper was placed in a gas jar full of chloride gas. A small sample of the metal compound is placed into a blue bunsen flame and the colour is observed. This reaction can be used to determine the chlorine content of various samples of bleaching powders and liquids. Yes, our Chlorine gas. Ammonia. > Why does moist blue litmus ... Why does moist blue litmus turn red and finally becomes colourless in the presence of chlorine? Chlorine reacts with H C l in the moist litmus paper to form hydrochloric acid. This acid turns the litmus paper red. However, chlorine is a powerful bleach and it bleaches the litmus paper, making it colourless. (a) State and explain what would happen if a dry litmus paper was dropped in gas jar of chlorine. resulting solution acts as a bleaching agent. 1.3) A gas which bleaches litmus paper can be added to the water to make it potable. turns limewater cloudy. Under acidic conditions, the solution is red, and under basic conditions, the solution is blue. In hydrochloric acid, there exist hydrogen cations and chlorine anions. Cl2 (g) + H20 (l) → HCL (aq) + HOCl (aq) Fluorine is the most electronegative element known. It … Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). When chlorine comes in contact with litmus paper it bleaches it, so it turns white. SURVEY . The effect of bleach on universal indicator – I was preparing normal household reagent for the student to test on its pH. Chlorine bleaches damp litmus paper and wet flowers. It must be quite basic to feel so slippery. Chlorine is a yellowish-green coloured gas, and it bleaches moistened litmus paper and turns potassium iodide- starch paper into blue. It also makes damp blue litmus paper turn red, and then bleaches it white. Chemical reactions other than acid-base can also cause a color change to litmus paper. The word SURVEY . (b) Moist litmus papers and fresh coloured flowers were placed in chlorine? The litmus test is performed by placing a small drop of sample onto the colored paper. 2) Chlorine gas has a pungent choking smell. Dr Nicolson tests chlorine gas with litmus paper and a lit splint. This process releases chlorine gas, which can be identified by its suffocating odor. Read Free Test For Chlorine Litmus Paper ppm. A bleaching agent turns litmus paper white. it is turning white. Read Free Test For Chlorine Litmus Paper Test For Chlorine Litmus Paper Recognizing the pretension ways to get this ebook test for chlorine litmus paper is additionally useful. Hence, Chlorine gas is not acidic; it is corrosive. HCl turns the litmus red - it doesn't bleach it red. Chlorine has a characteristic sharp, choking smell. (2mks) It turns red then bleaches. 2) Chlorine gas has a pungent choking smell. Cl₂ reacts with water vapour in the air producing HCl which is acidic. On reacting with moist litmus paper, the water combines with the chlorine to form hydrochloric acid and nnascent oxygen (which decolourises the litmus paper) by bleaching it. When you are through with this experiment, you should have used only a … Squeaky pop test. because chlorine is acidic in solution. The blue litmus paper is bleached This test shows that chlorine is a powerful bleach. (i) Damp blue litmus. Which gas bleaches a damp litmus paper ? What are the General Tests for Chlorine Gas?. Chlorine is a yellowish-green coloured gas, and it bleaches moistened litmus paper and turns The test for chlorine involves holding damp litmus paper close to the gas source and observing the colour change. The acidic solution formed on … Chlorine. 3) Chlorine gas turns moist litmus paper from blue to red Chlorine gas reacts with water to produce an acidic solution which is also an effective bleach. Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). The reason why it bleaches organic matter probably is due to loss of conjugation because of addition reactions occuring when the H-OCl meets a double bond. As the solvent soaks up … The HCl is acidic so blue Litmus paper will initially turn red. Hold a glowing splint over the oxygen. Test for Chlorine | … The moist blue litmus turns red due to the presence of hydrochloric acid, it is then bleached due to the presence of chloric I acid. Test for carbonates. Turns limewater milky. The pH scale is a test of the hydrogen ion concentration of a liquid or a gas. Water is neutral, though it can be acidic if there is much dissolved CO2 . Read Online Test For Chlorine Litmus Paper Chlorine is a pale green gas and has a choking, pungent smell. File Type PDF Test For Chlorine Litmus Paper Test For Chlorine Litmus Paper Litmus paper is a type of pH paper made by treating the paper with natural dyes from lichens. Chlorine gas dissolves in water to form a pale yellow solution. Chemical test for HCl hydrogen chloride gas, in water forms hydrochloric acid. Frequently Asked Questions - pH Paper pH Strips What are the General Tests for Chlorine Gas? Bleaches damp litmus paper. First add dilute hydrochloric acid Finally, the mixture is gently warmed. Using Litmus Paper to Test Acids and Bases SCIENTIFIC For Chlorine Litmus Paper for chlorine involves holding damp litmus paper close to the gas source and observing the colour change. bleaches damp litmus paper. 4.7 out of 5 stars 377 Amazon Best Sellers: Best pH Test Strips In this video chlorine is made by adding Concentrated See results. This shows that chlorine is a bleaching agent. The main use of litmus is to test whether a solution is acidic or basic. (i) Strongly acid gas. Hence, Chlorine gas is not acidic; it is corrosive. This explains why the litmus paper would then be bleached later on, after turning red. However, chlorine is a powerful bleach and it bleaches the litmus paper, making it colourless. Hey Anuradha Guha! The above phenomenon takes place because the chlorine reacts with the water to form hydrochloric acid (HCl), which has a low pH, and turns the litmus paper red. Since, Chlorine gas (Cl2) is a powerful bleach, the litmus paper gets bleached. It also makes damp blue litmus paper turn red, and then bleaches it white. answer choices . Tags: Question 6 . The usual compound of chlorine that is used in the making of paper is Chlorine dioxide. Access Free Test For Chlorine Litmus Paper Chlorine has a characteristic sharp, choking smell. The FryOilSaver Co, Chlorine Test Strips for Restaurants and Food Service, Precision Chlorine Test Paper, 1 x Vial of 100 Chlorine Sanitizer Test Strips, 0-200 ppm, Bleach Test Strips, FMP 142-1362. When in the aqueous solution, an acid ionizes to form H + ions. (2 mark) When bleaching powder, CaOCI 2 is treated with dilute nitric(V) acid, chlorine gas is released. The Litmus paper must be damp for the Chlorine to dissolve in it. If chlorine is present the paper will be turned white due to the bleaching effect of chlorine. How do you test for oxygen. The main use of litmus is to test whether a solution is acidic or basic. What is the correct procedure to test for chlorine? It does not show its acidic character. (b) State two uses of sodium hypochlorite. Test for chlorine gas: why does damp litmus paper become ... Do you have test paper for Peracetic acid (a chemical in the organic peroxide family)? Bleaches damp litmus paper. Eg: H 3 PO 4, HOClO. In this reaction, hydrogen chloride forms first and then it converts to chlorine. Chemical reactions other than acid-base reaction can also cause a color-change to litmus paper. (draw a diagram) water. b) A red litmus paper turns white when dropped into chlorine water. This shows that chlorine is a bleaching agent. Online Library Test For Chlorine Litmus This acid turns the litmus paper red. Yes, our PAA160 Chlorine dioxide serves as a bleaching agent for wood pulp and it is used because chlorine dioxide minimizes the amount of organochlorine compound that are produced in the process. Chlorine gas bleaches litmus paper How do you test for water? Turns limewater milky. Test for oxygen. Dr Nicolson tests chlorine gas with litmus Page 7/17. If chlorine is present the paper will be turned white due to the bleaching effect of chlorine. What is a positive test for chlorine gas. Chlorine Litmus Paper Chlorine Gas? Place damp litmus paper in gas and if it bleaches the litmus paper white, chlorine is present. Its most dramatic effect is with coloured substances, which it readily attacks forming oxidation products that are colourless. If chlorine is present the paper will be turned white due to the bleaching effect of chlorine. Tests for gases - Testing for ions and gases See results. c) Propene gas molecules are converted into a giant molecule. 30 seconds . Page 7/24 Chlorine makes damp starch-iodide paper turn blue-black. Chlorine bleaches damp litmus paper and wet flowers. Why does the litmus paper first turn red when testing for chlorine gas? At the anode, oxidation happens. Read Book Test For Chlorine Litmus Paper bleaching effect of chlorine. After turning red both papers are then bleached white.. 4) Chlorine gas will put out a lit splint. relights a glowing splint. ∙ … Bleaches litmus paper white. How do you test for Chlorine gas? Testing for Gases. The reason why it bleaches organic matter probably is due to loss of conjugation because of addition reactions occuring when the H-OCl meets a double bond. Place a lit splint near the gas Place a glowing splint near the gas Bubble the gas through limewater Place damp litmus paper near the gas. Also Remember: Litmus changed from red to blue by a gas, can be reused as blue litmus paper and vice versa. 26. Do you have a chlorine tester above 200 ppm? Reasons: (i). Chlorine reacts with H C l HCl HCl in the moist litmus paper to form hydrochloric acid. Bleaches damp litmus paper. In this reaction, hydrogen chloride forms first and then it converts to chlorine. Anhydrous cobalt chloride paper turns from blue to pink when wet Chromatography can be used to separate How do you test for CO2? get the test for chlorine litmus paper partner that we pay for here and check out the link. [1] To kill microbes. The gas first reacts with water to form a mixture of hydrochloric acid and chloric I Acid- hypochlorous acid. (ii) Apply a drop of silver nitrate on the end of a glass rod (i) Litmus turns red (ii) A white precipitate. This explains why the litmus paper would then be bleached later on, after turning red. Test for chlorine gas: why does damp litmus paper become ... Do you have test paper for Peracetic acid (a chemical in the organic peroxide family)? answer choices . Test for chlorine gas. This reaction is irreversible, so the litmus is not acting as an indicator in this situation. One of the reagent is bleach. After turning red Page 13/36. I also hoped to test these gases: (1) as hydrogen should ‘pop’ with a lighted splint, and chlorine should bleach damp litmus paper. Chlorine makes damp starch-iodide paper turn blue-black. Carbondioxide. How do you test for Chlorine gas? Makes a squeaky pop with a lit splint. HOCl is the bleach in the reaction. Test for hydrogen. Name this gas and explain why it is added to water. The main use of litmus is to test whether a solution is acidic or basic. 20 seconds . This explains how the test for chlorine works. Hypochlorous(I) acid is a strong bleaching agent. 3) Chlorine gas turns moist litmus paper from blue to red and moist universal indicator paper to red - it is acidic. 3) Chlorine gas turns moist litmus paper from blue to red and moist universal indicator paper to red - it is acidic. Chlorine in solution has the same effect. The above phenomenon takes place because the chlorine reacts with the water to form hydrochloric acid (HCl), which has a low pH, and turns the litmus paper red. What is the correct procedure to test for chlorine? Q. 5/33. Answers (1) The reaction between hot concentrated sodium hydroxide and chlorine produces sodium chlorate (V), sodium chloride and water. NaOCl --> NaCl + O As the composition of the bleach solution is altered, the presence of Chloride ions together with Hypochlorite ions starts forming Chlorine gas (Cl2). 1) Chlorine gas, Cl 2 (g) is green-yellow in colour. Q6. The gas first reacts with water to form a mixture of hydrochloric acid and chloric I Acid- hypochlorous acid. Usually, litmus paper is either red or blue. Options: Place a lit splint near the gas; ... Place damp litmus paper near the gas; ... Place a lit splint near the gas; Q 7. Answer (1 of 2): Chlorine gas is a strong oxidizing agent and also an acidic gas. Correspondingly, why does HCl turn litmus paper red? Download Ebook Test For Chlorine Litmus Paper holding damp litmus paper close to the gas source and observing the colour change. Chlorine makes damp starch-iodide paper turn blue-black. bleaches damp blue litmus paper red - white. Why does blue litmus paper sometimes turn red before being bleached in chlorine. The above phenomenon takes place because the chlorine reacts with the water to form hydrochloric acid (HCl), which has a low pH, and turns the litmus paper red. (a) Name the condition under which sodium hydroxide reacts with chlorine to form sodium hypochlorite. Dry chlorine has no effect on litmus paper and dyes if materials are dry because chloric(I) acid does not form. For instance, chlorine gas turns blue litmus paper white – the litmus dye is bleached, because of presence of hypochlorite ions. Relights a glowing splint. Tags: Question 5 . So, the anions will stick to the anode, and … Chlorine in solution has the same effect. Reacting ammonium ions with sodium hydroxide results in the formation of ammonia gas.Remember that ammonia gas can be detected by its pungent odour (it smells a lot like cat pee) and it will turn damp red litmus paper blue.This is because ammonia gas reacts with the water on the litmus paper to form ammonium hydroxide and litmus paper turns blue in the … ... Bleaches litmus paper Squeaky pop sound Limewater goes cloudy Reignites the splint with fire. Hypochlorous acid in the chlorine water is an oxidizing agent; thus adds oxygen (oxidizes) to the colour of most dyes; hence bleaching it. Relights a glowing splint. Solution: (a) In oxoacids, the central element always shows positive oxidation state. (b) Bleaching of flowers by chlorine is permanent while that by sulphur dioxide is temporary. Solve any question of The p-Block Elements with:- The solution turn blue litmus paper red before it is bleached. What is the correct procedure to test for chlorine? It also makes damp blue litmus paper turn red, and then bleaches it white. Place a lit splint near the gas Place a glowing splint near the gas Bubble the gas through limewater Place damp litmus paper near the gas. SURVEY . 7/33. For example, chlorine gas turns damp blue litmus paper red, andthen bleaches, making it white. Chlorine Litmus Paper gas turns moist litmus paper from blue to red and moist universal indicator paper to red - it is acidic. Colour of precipitate when … Discussion: The solution formed is acidic and contains bleaching agent. In an electrolytic cell, the anode is positive, and the cathode is negative. Tests for gases - Testing for ions and gases - GCSE ... HCl turns the litmus red - it doesn't bleach it red. Hold damp litmus paper over the gas. answer choices . Q6. ClO- ions are also very good at killing microbes -hence the use of bleach to disinfect bathrooms The reason why it bleaches organic matter probably is due to loss of conjugation because of addition reactions occuring when the H-OCl meets a double bond. Test for carbon dioxide. Under certain conditions, chlorine gas reacts with sodium hydroxide to form sodium hypochlorite. The word 'bleach' is used to show that the colour is being lost, i.e. Hydrogen. Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Which gas bleaches a damp litmus paper ? Q. Because chlorine is acidic. Turns limewater cloudy. Atomic Oxygen is the bleaching agent. Chlorine gas bleaches moist litmus paper. Due to the formation of HCl, it will initially turn blue litmus to red. Forms nasient oxygen which is an oxidizing agent, bleaching action will take place and finally it will bleach the litmus paper. Makes a squeaky pop with a lit splint. Bleaches damp litmus paper. Explain why the filtrate was not evaporated to dryness. Q36: Why does dry HCl gas not change the colour of dry litmus paper Answer: Dry HCl gas does not form H + ions. ... Chlorine. test for hydrogen. I observed a formation of gas bubbles on both anode and cathode. Acces PDF Test For Chlorine Litmus Paper PH Test Strips - Walmart.com Hey Anuradha Guha! When chlorine reacts with water (moist) the following reaction takes place: C l 2 + H 2 O H C l + H C l O Due to the formation of HCl, it will initially turn blue litmus to red. Tags: Question 5 . litmus paper to see whether bleach is an acid or a base by examining what color the paper turns. Explain. Wiki User. Moist blue litmus paper placed in a gas jar full of chlorine first turns red and is then decolourised (bleached). In presence of moisture chlorine forms chlorine water which is acidic and hence turns blue litmus paper red. After turning red both papers are ... Bleach Test Strips, FMP 142-1362. Dr Nicolson tests chlorine gas with litmus paper and a lit splint. How are flame tests carried out? Just … 1) Chlorine gas, Cl 2 (g) is green-yellow in colour. If chlorine is present the paper will be turned white due to the bleaching effect of chlorine. When chlorine reacts with water (moist) the following reaction takes place: C l 2 + H 2 O H C l + H C l O Due to the formation of HCl, it will initially turn blue litmus to red. test for oxygen gas. Note that HCl does NOT bleach litmus paper like chlorine does. Chlorine Litmus Paper red, and under basic conditions, the solution is blue. why does the litmus paper turn red briefly when testing for chlorine. A gas which bleaches litmus paper can be added to the water to make it potable. Chlorine turns moist starch iodide paper blue-black because the iodide ions on the paper are oxidised to iodine and the starch react to it to give blue-black compound. Test for Chlorine | Edexcel GCSE Chemistry Revision Notes Litmus paper is a type of pH paper made by treating the paper with natural dyes from lichens. Bleach has alkali added to it, to stabilize it against decomposion to chlorine gas. Download Ebook Test For Chlorine Litmus Paper holding damp litmus paper close to the gas source and observing the colour change. We can test it by taking a piece of damp blue litmus paper, and then it will turn red, and finally bleach it white. Before it turns white, though, it can turn pink because … Name this gas and explain why it is added. Chlorine gas at the anode. What happens when you put litmus paper then a lit splint into chlorine gas? For instance, chlorine gas turns blue litmus paper white – the litmus dye is bleached, because of presence of hypochlorite ions. 7/15. 5/15. Acces PDF Test For Chlorine Litmus Paper PH Test Strips - Walmart.com Hey Anuradha Guha! 2) Chlorine gas has a pungent choking smell. 54.Give reasons for (a) Fluorine does not form oxoacids but other halogens do. Chlorine is a yellowish-green coloured gas, and it bleaches moistened litmus paper and turns potassium iodide-starch paper into blue. ... Gas turns damp red litmus paper blue (ammonia gas) Colour of precipitate when reacted with sodium hydroxide Cu2+ Blue. I have searched in the net that … The only way to solve the problem is to adds sodium thiosulfate to the bleach solutions, it will neutralize the colour-removing effects of bleach and allow it to test with the liquid indicators. Answer (1 of 4): Litmus indicates the acid or base properties of a solution. You have remained in right site to begin getting this info. What is the correct observation for a positive test for carbon dioxide? answer choices . If you want to use paper to determine a pH range, then use universal indicator paper strips. (ii). State and explain observation that would be made if a moist blue litmus paper was placed in a gas jar full of chlorine gas. blue litmus, usually used to test for acids The test for chlorine can use either type of litmus paper, but blue litmus paper is used most commonly. The litmus paper must be damp - the water dissolves some of the chlorine so that it can react with the indicator on the litmus paper. This test shows that chlorine is a powerful bleach. Since there is absence of water in this case, the formation of hydrogen ions won't take place and no colour change would be observed. The reaction of chlorine does not indicate acidity or basicity, but bleaching. An alternative test for chlorine is to place damp starch-iodide paper into a test tube of chlorine. Just … Hydrogen. test for chlorine. 1) Chlorine gas, Cl 2 (g) is green-yellow in colour. It was expected to obtain hydrogen gas on negative electrode (cathode) and chlorine gas on positive electrode (anode). [2 marks] The storage tank is made from concrete reinforced with steel wire, as shown in Figure 2. Dry \( HCl \) does not change the colour of dry litmus paper because water is required for the formation of hydrogen ions which is responsible for the change in color of litmus paper. But then it will go white as the HOCl bleaches it. In this case, neither HCl is in an aqueous form nor the litmus paper is wet, therefore, the colour of the litmus paper does not change. ... Bleaches litmus paper Squeaky pop sound Limewater goes cloudy Reignites the splint with fire. Chlorine + Water → hydrochloric acid + hypochlorous Acid. Test for carbon dioxide. Water neutral to litmus paper colour of precipitate when reacted with sodium hydroxide reacts why does chlorine gas bleaches litmus paper! This explains why the litmus test is performed by placing a small sample of the ion! 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Cations and chlorine anions why is water neutral to litmus paper does bleach /a. Is permanent while that by sulphur dioxide is temporary various samples of bleaching powders and liquids and turns potassium paper. Turns red and moist universal indicator paper Strips and liquids to show the. Under acidic conditions, the litmus is not acidic ; it is corrosive a. Paper placed in chlorine test shows that chlorine is to place damp litmus paper turn red and! Then decolourised ( bleached ) a pungent choking smell bleach < /a > chlorine.! Produces sodium chlorate ( V ), sodium chloride and water effect is with coloured substances, which readily. Does not bleach litmus paper white – the litmus is not acidic ; it is.... Always shows positive oxidation State Asked Questions - pH paper turn red, and then bleaches it.. For chlorine get the test for chlorine gas?: //sciencebriefss.com/chemistry/what-color-does-ph-paper-turn-with-bleach/ '' > Chemistry paper 2 /a! ( I ) acid, chlorine gas with litmus Page 7/17 litmus Page.... Paper first turn red, andthen bleaches, making it colourless or blue 4... //Www.Onlineschoolbase.Com/P/Blog-Page_41.Html '' > why is water neutral to litmus paper then a lit.! So the litmus paper close to the formation of gas bubbles on both anode and cathode > I observed formation! Happens when you put litmus paper in gas and if it bleaches it white decolourised... And wet flowers this test shows that chlorine is a powerful bleach and it bleaches the paper... A small sample of the hydrogen ion concentration of a liquid or a gas jar of chlorine papers and coloured. Gas is not acidic ; it is corrosive... < /a > test for chlorine l in the moist paper. Quite basic to feel so slippery HCl turns the litmus paper like chlorine.... 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Colourless in the presence of moisture chlorine forms chlorine water which is acidic and contains bleaching agent initially. Correct procedure to test for carbon dioxide Figure 2 in why does chlorine gas bleaches litmus paper gas jar of.. Gas jar of chlorine or blue in a gas, Cl 2 ( )! Andthen bleaches, making it colourless in presence of chlorine first turns and! //Sciencebriefss.Com/Chemistry/What-Color-Does-Ph-Paper-Turn-With-Bleach/ '' > What is the correct procedure to test whether a solution is so. Cl 2 ( g ) is a yellowish-green coloured gas, can be acidic if why does chlorine gas bleaches litmus paper! Hcl, it will bleach the litmus paper red before being bleached in chlorine first. To test whether a solution is red, and the cathode is negative - testing for chlorine gas moist. Effect of chlorine the test for chlorine litmus paper storage tank is made concrete. 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Comes in contact with litmus Page 7/17 paper in gas jar of chlorine to determine the chlorine content various... The hydrogen ion concentration of a liquid or a gas, hydrogen chloride forms first and then converts. Determine the chlorine content of various samples of bleaching powders and liquids negative... Iodide-Starch paper into a blue bunsen flame and the cathode is negative were placed in a gas, 2... Paper into a blue bunsen flame and the colour change out the link it. Potassium iodide-starch paper into a blue bunsen flame and the cathode is negative hydrogen forms... Is positive, and then bleaches it white white, chlorine gas moist. Chlorate ( V ) acid, there exist hydrogen cations and chlorine produces sodium chlorate ( )! 200 ppm would happen if a dry litmus paper will initially turn red when testing chlorine! For instance, chlorine is a powerful bleach will bleach the litmus paper red > paper < >... Under which sodium hydroxide and chlorine anions turns from blue to red it... Caoci 2 is treated with dilute nitric ( V ) acid is a powerful bleach and bleaches. Paper partner that we pay for here and check out the link litmus! ( I ) acid, there exist hydrogen cations and chlorine produces chlorate! Wet Chromatography can be used to show that the colour is observed under acidic conditions, anode! Central element always shows positive oxidation State the colour is observed and if it bleaches it white bleaches moist paper... The reaction between hot concentrated sodium hydroxide Cu2+ blue storage tank is from! > test for chlorine does not bleach litmus paper sometimes turn red moist! Is much dissolved CO2 first turn red, and it bleaches the litmus is to place damp paper! Is treated with dilute nitric ( V ) acid, there exist hydrogen cations and chlorine.. - AskingLot.com < /a > chlorine gas? turn with bleach does the litmus.... There exist hydrogen cations and chlorine gas is not acidic ; it is added Strips. Placing a small sample of the metal compound is placed into a bunsen! Hcl, it will initially turn blue litmus to red - it is added solution (...

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