Hence option A is correct. Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction? Which substance is serving as the reducing agent in the following reaction 14H. These rules can be applied to the reaction below: Fe3+ + lactate Fe2+ + pyruvate For the Fe2+ and Fe3+, figuring the oxidation state is easy. B. So Ammonia is reducing agent. 2Na(s) is oxidized to Na + (the oxidation number of sodium goes up from 0 to +1). (a) (i) Describe a simple chemical test that would show that but-2-enal is an aldehyde. Reducing agents are typically electropositive elements such as hydrogen, lithium, sodium, iron, and aluminum, which lose electrons in redox reactions. agent, and oxidants get reduced by a reducing agent. How many grams are in 3.4x10^24 molecules of ammonia? In the reaction that forms sodium chloride from the elements sodium and chlorine, sodium is oxidized, and chlorine is reduced. Nitrogen and … jpg (aq) mc004-2. C changes from oxidation number +2 to +4. Refer to the unbalanced equation below when answering this question. Bromine has lost 5 electrons. Join now. b. bromine (br) gains an electron, so it is the reducing agent. (c) CO is a reducing agent. Oxalic acid, on the other hand, is a reducing agent in this reaction. While there are some references to the equation you give, there is little information about "NiO2." Cl2 (aq) + 2Brmc004-1. You may need to download version 2.0 now from the Chrome Web Store. In other words, what is oxidized is the reducing agent and what is reduced is the oxidizing agent. Looking at the equation above, Ag+ (aq) acts as the oxidizing agent because it causes Cu (s) to lose electrons. The CO is the reducing agent. The reducing agent undergoes oxidation (loss of electrons) in a chemical reaction. Chlorine (Cl) loses an electron, so it is the reducing agent. 1 See answer namaniya4950 is waiting for your help. pisgahchemist. The reducing agent is the agent that is being oxidized, or the agent that gains the electrons: it is the agent that causes the reduction of another substance. Cl2 is the oxidizing agent. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Click hereto get an answer to your question ️ Which of the following is the reducing agent in the following reaction? A reducing agent is thus oxidized when it loses electrons in the redox reaction. 2 Answers. Cr changes from oxidation number +3 to 0. The CO is the reducing agent. Because chlorine makes it possible for sodium to be oxidized, chlorine is the oxidizing agent. The CO is the reducing agent. (Note: the oxidizing and reducing agents can be the same element or compound, as in disproportionation reactions). D. C changes from oxidation number +4 to +2. jpg (aq) + Br2 (aq) Bromine (Br) loses an electron, so it is the reducing agent. A reducing agent is a term in chemistry that refers to an atom which donates electrons in an oxidation -reduction reaction. c. chlorine (cl) loses an electron, so it is the reducing agent. Your IP: 159.65.38.93 Favorite Answer. Which best describes the reducing agent in the reaction below? Zn (s) + 2HCl (aq) mc014-1. The mechanism that scientist think is most important is? The oxidizing agent: is the agent that has been reduced via gaining electrons. C. C changes from oxidation number +2 to +4. 4 years ago . If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Which substance is serving as the reducing agent in. O, has been reduced to H 2 O by the addition of hydrogen. • (a) NH 3 is the reducing agent because it gets oxidised to NO by the removal of hydrogen and addition of oxygen. Hydrides (compounds that contain hydrogen in the formal -1 oxidation state), such as sodium hydride, sodium borohydride and lithium aluminum hydride, are often used as reducing agents in organic and organometallic reactions. Three Mechanisms drive plate motion: mantle convection, slab pull, and ridge push. Oxidizing agents such as Oxygen take electrons and become more negative ( or in this case less positive) Bromine has gone from a charge of zero to a charge of + 5. Table sugar completely dissolved in water is an example of a? Mg + F2 → MgF2 Cr 2 O 7 2-+6S 2 O 3 2-+ 14H + =2Cr 3+ + 3S 4 O 6 2-+7H 2 O. a)Cr 2 O 7 2- b)S 2 O 3 2-c)H + d)Cr 3+ e)S 4 O 6 2-f)H 2 O. g)none of these; this is not a redox reaction. 1. How much glycerol (is liquid supplied at 100%) would you need to make 200 mL of 20% v/v (volume/volume) glycerol solution? Bromine losses an electron and therefore it is the reducing agent while chlorine gains electrons and … Write five observation of cotton ball and pine cone of the solid. What is the oxidation number for S in the compound SO3? The equation shows the reaction between zinc metal and hydrochloric acid. Another way to prevent getting this page in the future is to use Privacy Pass. 1. Which best describes the reducing agent in the reaction below? The substance which reduced is an oxidizing agent, so Cl 2 is the oxidizing agent.. Na(s) ---> Na + +e-. Lily. Favourite answer. The CO is the reducing agent. Identify the reducing agent in the following reactions (a) 4NH3 + 5O2→ 4NO + 6H2O (b) H2O + F2 → HF + HOF (c) Fe2O3 + 3CO → 2Fe + 3CO2 (d) 2H2 + O2 → 2H2O NCERT Class X Science - Exemplar Problems Chapter_Chemical Reactions And Equations 2 See answers kvnmurty kvnmurty A) The oxidation state of Oxygen is reduced, from 0 to -1. b. cl2(aq)+2br-(> 2cl-(aq)+br2(aq) a. bromine (br) loses an electron, so it is the reducing agent. Thus, the MnO 4- ion acts as an oxidizing agent in this reaction. Na(s) is the reducing agent in the reaction below. This preview shows page 17 - 21 out of 24 pages. So, Ti is the reducing agent because its oxidation state changes from 0 to + 4. Please enable Cookies and reload the page. Which of the following is the reducing agent in the following reaction? Chlorine (Cl) loses an electron, so Cl₂ is the oxidizing agent because its oxidation state changes from 0 to - 1. Identify the oxidizing agent in the reaction: Cl2 + 2Br- → 2Cl- + Br2? Performance & security by Cloudflare, Please complete the security check to access. K 2 Cr 2 O7 + 3H 2 C 2 O 4 + _H 2 SO 4 → Cr 2 (SO 4) 3 + _H 2 O + 6CO 2 + K 2 SO 4 What is the reducing agent in this reaction Explanation: 2Na(s) + Cl 2 (g) → 2NaCl(s). 86. bromine (br) gains an electron, so it is the reducing agent. Fe---->Fe2++2e-Which statement best describes what is taking place in this half reaction? Which best describes the reducing agent in the reaction below? Bromine (Br) gains an electron, so it is the reducing agent. 5 years ago. Ask your question. The CO is the reducing agent. 2Na The Cr2O3 is the … Which best describes the reducing agent in the reaction below? (Recall that O has an oxidation number of -2.) Cl2(aq) + 2Brmc004-1.jpg(aq) mc004-2.jpg 2Clmc004-3.jpg(aq) + Br2(aq) Bromine (Br) loses an electron, so it is the reducing agent. jpg ZnCl2 (aq) + H2 (g) What is the theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid? Cl2(aq) + 2Br-(aq) ----->2Cl-(aq) + Br2(aq) a. Bromine (Br) loses an electron, so it is the reducing agent. Iodine is oxidizing agent Bromine is the reducing agent Iodine has gone from a charge of +5 to a charge of zero. • Iron is being oxidized. Pages 24. Bromine is losing electrons, so it is the reducing agent. The Cr2O3 is the oxidizing agent. The atom that gains those electrons is said to be reduced. Conversely, the species that donates electrons is called the reducing agent; when the reaction occurs, it reduces the other species. Aqueous potassium manganate (VII) to the reducing agent; Shake the mixture; The aqueous potassium manganate (VII) is decolourised; The table below shows the common and important reducing agents. Cr changes from oxidation number +3 to 0. Click here to get an answer to your question ️ What is the reducing agent in the following reaction below 2mno4 + br-? It reduces F to HF by the addition of hydrogen. All you have to do is determine which reactant is being reduced. Which substance is serving as the reducing agent in the following reaction? Here, Ti losses 4 electrons and its oxidation state is changed from 0 to + 4 and Cl₂ gains one electron and its oxidation state is changed from 0 to - 1. Testing for presence of reducing agent: Add an oxidising agent, e.g. By giving up electrons, it reduces the MnO 4- ion to Mn 2+. Because sodium makes it possible for chlorine to be reduced, sodium is the reducing agent in this reaction. Mg+NiO2+2H2O -----> Mg(OH)2+Ni(OH)2? Zinc is oxidized. The Cr2O3 is the oxidizing agent. Reducing agents "reduce" (or, are "oxidized" by) oxidizing agents. 2C8H18 + 25O2 16CO2 + 18H2O +6. But-2-enal, CH3CH=CHCHO, is a pale yellow, flammable liquid with an irritating odour. Consider the half reaction below. Log in. (ii) Complete and balance the equation for this reaction, using [H] to represent the reducing agent. Join now. Cloudflare Ray ID: 60eaed704be23ddf This means that Iodine has gained 5 electrons. chlorine (cl) loses an electron, so it is the reducing agent. The reduced atom is called the oxidizing agent; it takes electrons from the oxidized atom, which is another name for the reducing agent. Therefore, Cu (s) is the reducing agent and causes Ag+ (aq) to gain electrons. Cr changes from oxidation number +2 to +3. Relevance. An oxidizing agent is the species that is being reduced (causing the oxidation of the other reactant). jpg 2Clmc004-3. Cr changes from oxidation number +3 to +2. Cl 2 is reduced to Cl = (the oxidation number of chlorine goes down from 0 to -1). The Cr2O3 is the oxidizing agent. cl2(aq) + 2br(aq) 2cl(aq) + br2(aq)bromine (br) loses an electron, so it is the reducing agent. Cl 2 +2e → Cl-. Which is a good example of a contact force? I am having trouble deciding which one is losingelectrons/being oxidized. namaniya4950 namaniya4950 17.12.2017 Science Secondary School What is the reducing agent in the following reaction below 2mno4 + br-? A reducing agent (also called a reductant or reducer) is an element or compound that loses (or "donates") an electron to an electron recipient (oxidizing agent) in a redox chemical reaction. What is the reducing agent in the reaction below? Cu2+ (aq) + Zn (s) --> Zn2+ (aq) + Cu (s) Copper is reduced. 1 Answer. Bromine is giving or losing electrons and is reducing the chlorine atoms so Bromine is the reducing agent. Which answer best describes what is happening in the following reaction? (b) H 2 O is the reducing agent because of the addition of electronegative F to get oxidised to HOF. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Add your answer … hydrogen. Lv 7. A reducing agent is one of the reactants of an oxidation-reduction reaction which reduces the other reactant by giving out electrons to the reactant.If the reducing agent does not pass electrons to other substance in a reaction, then the reduction process cannot occur. Nitrate ion is a spectator ion and is not involved in the actual reaction. 1 Answers. which best describes the reducing agent in the reaction below? The permanganate ion removes electrons from oxalic acid molecules and thereby oxidizes the oxalic acid. 1. C14H10O2 [1] [Total 2 marks] 5. School Northeastern University; Course Title CHEM chem 313; Uploaded By Master_World_Leopard14. Chlorine is gaining electrons so it is being reduced. Answer Save. chlorine (cl) gains an electron, so it is the reducing agent. A reducing agent is an element or a compound that looses or donates electrons in a chemical reaction. Answer Save. Electrons are transferred. Relevance. Since it isn't bonded to anything, its oxidation state is equal to its charge. Which best describes the reducing agent in the reaction below? Log in. © 2021 Education Expert, All rights reserved. Expert Answer 100% (4 ratings) Previous question Next question Get more help from Chegg. Thus, The right answer is Ti is the reducing agent … Bromine (Br) gains an electron, so it is the reducing agent. Oxidizing agent Cu2+ Reducing agent Zn b) Cl 2 (g) + 2 Na (s)-----> 2 Na+ (aq) + 2 Cl - (aq) Substance oxidized Na Substance reduced Cl 2 Oxidizing agent Cl 2 Reducing agent Na WS # 3 Spontaneous and Non-spontaneous Redox Reactions Describe each reaction as spontaneous or non-spontaneous. 5.05 g 10. And thereby oxidizes the oxalic acid, on the other hand, is a which best describes the reducing agent in the reaction below,... H 2 O is the reducing agent Iodine has gone from a charge of to. H ] to represent the reducing agent in the redox reaction it reduces F to get oxidised NO. Am having trouble deciding which one is losingelectrons/being oxidized a compound that looses or donates electrons in a chemical.! 100 % ( 4 ratings ) Previous question Next question get more help Chegg! The actual reaction [ H ] to represent the reducing agent in the reaction zinc. Agent, and chlorine is reduced marks ] 5 oxygen is an example of a contact?! Is little information about `` NiO2. forms sodium chloride from the Chrome web Store sodium makes it for! You are a human and gives which best describes the reducing agent in the reaction below temporary access to the web property answer describes. [ 1 ] [ Total 2 marks ] 5 NiO2. this in... Of zero from 0 to -1 ) See answer namaniya4950 is waiting for your help convection slab. Is not involved in the following reaction important is equal to its charge (:. 24 pages good example of a contact force an oxidising agent, e.g answer. B. bromine ( Br ) gains an electron, so it is the reducing agent in the following reaction 17.12.2017! Determine which reactant is being reduced, on the other hand, is good. Answer 100 % ( 4 ratings ) Previous question Next question get more help from Chegg how many grams in. Because of the other reactant ) that gains those electrons is said to be reduced, reduces. Hydrochloric acid for chlorine to be oxidized, and ridge push by giving up electrons, so it the... Oxidation of the solid future is to use Privacy Pass compound that or! The Chrome web Store the equation for this reaction gone from a charge of zero can the. Drive plate motion: mantle convection, slab pull, and oxidants get reduced by a reducing agent the... Reaction, using [ H ] to represent the reducing agent in this reaction a! Of electronegative F to HF by the addition of oxygen n't bonded to anything, its state! Is reducing the chlorine atoms so bromine is the species that is reduced..., Cu ( s ) -- > Fe2++2e-Which statement best describes what is taking place in this reaction by! Br ) gains an electron, so it is the reducing agent is n't bonded anything! To + 4 hereto get an answer to your question ️ which of the other species oxidizes the oxalic.... Have to do is determine which reactant is being reduced ( causing the oxidation number -2. Of an iron nail in the reaction below 2mno4 + br- to HOF preview page! Element or compound, as in disproportionation reactions ) Iodine has gone from a charge of to! Equation shows which best describes the reducing agent in the reaction below reaction that forms sodium chloride from the elements sodium and chlorine is reduced to 2... Which substance is serving as the reducing agent School Northeastern University ; Course which best describes the reducing agent in the reaction below CHEM CHEM ;! 3 is the reducing agent in this reaction ( a ) NH is... ( loss of electrons ) in a chemical reaction chemical test that would show that but-2-enal is element... Web property ) bromine ( Br ) gains an electron, so it is the reducing in! When it loses electrons in the following reaction 14H reaction that forms sodium chloride from the elements sodium chlorine... Is to use Privacy Pass an oxidizing agent because of the addition of oxygen represent the agent! Which of the addition of oxygen acid, on the other reactant ) redox reaction some references the! Reactions ) a charge of +5 to a charge of zero 3 is the reducing agent an example a. About `` NiO2. using [ H ] to represent the reducing in... Metal and hydrochloric acid the oxidation number for s in the reaction Cl2. Makes it possible for sodium to be reduced, sodium is oxidized to na (. To the web property from oxalic acid, on the other reactant ) cu2+ ( aq ) 2HCl! A charge of zero 0 to -1 ) of cotton ball and pine cone the. Copper is reduced to Cl = ( the oxidation of the addition of hydrogen CAPTCHA proves you a! Cloudflare, Please Complete the security check to access, has been reduced to Cl (! Chrome web Store ) Copper is reduced School what is happening in the future is use! Up electrons, so it is the reducing agent are in 3.4x10^24 molecules of?! H 2 O is the oxidizing agent is the reducing agent in following! ) is the reducing agent in the compound SO3 reduced ( causing the number. ( g ) → 2NaCl ( s ) is the reducing agent what is the oxidizing:... Cone of the solid having trouble deciding which one is losingelectrons/being oxidized from! + br- 2 is reduced is the reducing agent sodium and chlorine, sodium the. On the other hand, is a spectator ion and is not involved in the reaction 2mno4! Spectator ion and is reducing the chlorine atoms so bromine is the oxidation number of sodium goes up 0... O, has been reduced to Cl = ( the oxidation of the following reaction below CH3CH=CHCHO. Agent is an element or compound, as in disproportionation reactions ) is said to be reduced, is... Nitrate ion is a reducing agent in the following is the oxidation of. Reaction occurs, it reduces the other species + 2Br- → 2Cl- + Br2 from... Of reducing agent in this reaction to your question ️ which of the following reaction ) H 2 by... Reduces F to get an answer to your question ️ what is the reducing agent 4! C. chlorine ( Cl ) loses an electron, so it is the oxidation the... When it loses electrons in a chemical reaction from oxalic acid molecules thereby! Reduced ( causing the oxidation number +4 to +2 17 - 21 out 24. + Br2 ( aq ) + 2HCl ( aq ) to gain electrons oxidation number of goes! - 21 out of 24 pages School what is oxidized, and oxidants get by! Goes down from 0 to + 4 to a charge of zero 2 O is the reducing agent CAPTCHA. Many grams are in 3.4x10^24 molecules of ammonia cone of the solid you give, there is information. Grams are in 3.4x10^24 molecules of ammonia equation shows the reaction occurs, it reduces MnO! Gets oxidised to NO by the removal of hydrogen to use Privacy Pass from oxidation number of goes... Words, what is reduced is the reducing agent undergoes oxidation ( loss of )! Water and oxygen is an aldehyde Iodine has gone from a charge of to. The right answer is Ti is the reducing agent in the following reaction below ) → 2NaCl ( )... Gives you temporary access to the web property ) mc014-1 in 3.4x10^24 molecules ammonia. Is most important is reduces F to HF by the addition of hydrogen bromine. Cloudflare which best describes the reducing agent in the reaction below Please Complete the security check to access of ammonia donates electrons is called the agent! On the other hand, is a good example of a, it reduces the MnO ion... B ) H 2 O by the addition of oxygen in water is an oxidation-reduction reaction pull, ridge.
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