Reason : Chlorine-carbon (C—Cl) bond in chlorobenzene has a partial double bond character due to resonance. asked Jan 25, 2019 in Class X Science by aditya23 ( -2,145 points) study of compounds hydrogen chloride Assertion : It is difficult to replace chlorine by –OH in chlorobenzene in comparison to that in chloroethane. An oxidising agent is good at oxidising other compounds while being reduced itself; and vice-versa. In chemistry, an oxidizing agent (oxidant, oxidizer), or oxidising agent (oxidiser) is a substance that has the ability to oxidize other substances — in other words to accept their electrons. € € Atom that is reduced Tick (6) € €H € € €O € € €Cl € Page 8 of 81(1) The material meets one of the following conditions: For materials containing no more than 1.0 percent hydrogen peroxide, the available oxygen, as calculated using the equation in paragraph (a)(4)(ii) of this section, is not more than 1.0 percent, or The fact that the following reaction occurs, for example, suggests that copper metal is a stronger reducing agent than silver metal and that the Ag + ion is a stronger oxidizing agent … (a) Br 2 (b) I 2 (c) Cl 2 (d) F 2 Answer/Explanation Answer: d Explaination: (d) F 2 is best oxidising agent. Therefore it acts both as oxidizing and reducing agent. In the following half equation, which is the oxidizing agent? Oxidizing Agent: The oxidizing agent is defined as the species that oxidizes another in a chemical reaction and undergoes reduction. . Explains the trends in oxidising ability of the Group 7 elements in the Periodic Table by looking at their displacement reactions. 20. The oxidising power of oxy acids depends on its oxidation state.I.e. South Axholme School Page 4 Q12.Which one of the following can act as an oxidising agent but not as a reducing agent? Bromine is a fairly strong oxidising agent Iodine is the worst oxidising agent - mild The oxidising ability falls: as you go down the the group the atomic radius gets larger and there is an increase in shielding due to more inner shells of electrons - therefore there is a weaker attraction between the nucleus and the … Oxidizing agent: HNO3 In (iii) Oxidising agent: Fe2O3 Reducing agent: CO In (iv) Oxidising agent: O2 Reducing agent: NH3 26. Which of the following element is oxidised by conc. a. I2 b. MnO4-c. Zn2+ d. Zn e. MnO2 Answer Save 2 Answers Relevance Krrizh 1 decade ago Favourite answer MnO4- for sure!!!!! The reducing agent, which is the opposite of the oxidizing agent, is the copper wire because it catalyzes the transfer of the electrons into hydrogen molecules. A species can act as oxidizing agent only when metal ispresent in high oxidation state but lower oxidation state is more stable . Name the oxidising agent in the reaction between Manganese dioxide and cone, hydro-chloric acid. (ii) KMnO4 oxidises HCl into Cl2 which is also an oxidising agent. So, it s a weak reducing agent. Hydrogen gas is a reducing agent when it reacts with non-metals and an oxidising agent when it reacts with metals. This can be explained by the following equation: 2Mg (s) + O 2 (g) → 2MgO (s) It can be seen that magnesium (Mg) reacts with oxygen (O2), and that oxygen is the oxidizing agent because it subtracts electrons from Any element in its highest oxidation state, cannot oxidise anymore, and can hence not act as a reducing agent. It finds its uses as a weak oxidizing agent, disinfectant, and a bleaching agent. 9. Among the following which is strongest oxidising agent. It oxidises both metals and nonmetals. Spontaneous oxidation-reduction reactions convert the stronger of a pair of oxidizing agents and the stronger of a pair of reducing agents into a weaker oxidizing agent and a weaker reducing agent. Oxidising the different types of alcohols The oxidising agent used in these reactions is normally a solution of sodium or potassium dichromate(VI) acidified with dilute sulphuric acid. H 2 SO 4 acts as moderately strong oxidising agent. Also, stronger the oxidising agent, weaker is its corresponding reducing agent. higher the oxidation state of chlorine stronger will be the oxidising power.Hence oxidising strength of oxyacids are in the following order: N goes from ON +5 to ON +2, so NO3- is the oxidising agent. (i)€€€€€€Place a tick (6) next to the atom that is reduced. F 2 readily reduces to give F-. Common oxidizing agents are oxygen, hydrogen peroxide and the halogens. As higher oxidation states of Mo and W are more stable, they will not act as oxidizing agent. following will convert [Mn(H 2 O) 6] 2+ into MnO A an acid and a reducing agent B an acid and an oxidising agent C an alkali and a reducing agent D an alkali and an oxidising agent (Total 1 mark) Q23.Which one of the following A Therefore it acts as an oxidising agent. (iii) KMnO4 is a weaker oxidising agent than HCl. For a substance to be an oxidising agent it must therefore be willing to Hot conc. h2s+cl2=s+2hcl which substance is oxidized,reduced,oxidized agent - 1193040 Bromine can only oxidise iodide ions to iodine. Which phenolic compound has commonly been added to soap and raises concerns about selection Reducing agents Oxidation and reduction reactions play important roles in chemistry. Examples include household bleach (NaClO), Potassium Nitrate (KNO 3 ), and Sulphuric acid (H 2 SO 4 ). Oxidising agent: 2Li(s) + H2(g) -->2LiH(s) hydrogen acts as an oxidizing agent because it accepts an electron donation from lithium, which causes Li to be oxidized. Oxidative Phosphorylation One of the most important biochemical processes for all living animals is oxidative phosphorylation , or the transfer of … A€€€€€€€an acid and a reducing agent B€€€€€€€an acid and an oxidising agent C€€€€€€€an alkali and a reducing agent D€€€€€€€an alkali and an oxidising agent (Total 1 mark) 5 Which one of the following could not act as a í 33 Which is more reactive Mn o… Get the answers you need, now! Start studying Chapter 13 Micro Study Guide. Name the reducing agent in the following reaction : 3MnO2 +4 Al→3Mn + Al2O3. Which of the following is the strongest oxidising agent? So, F 2 acts as a good oxidising agent. Balance the following ionic equations (i) Cr2O72- + H+ + I-→ Cr3+ + I2 + H2O (ii) Cr2O2-7 + Fe2 lose electrons), meaning that the agent itself will reduce (gain electrons). An oxidising agent is one that causes another substance to oxidise (i.e. This is due to hhigh electron affinity of fluorine. Reason : Oxidising agent oxidises I 2 into HI. Of the four oxyacids of chlorine the strongest oxidising agent in dilute aqueous solution is [MP PET 2000] A) \[HCl{{O}_{4}}\] done clear (i) Both HCl and KMnO4 act as oxidising agents. Oxidising and Reducing Agents (1) Definition: The substance (atom, ion or molecule) that gains electrons and is thereby reduced to a low valency state is called an oxidising agent, while the substance that loses electrons and is thereby oxidised to a higher valency state is called a reducing agent. (d)€€€€ When HOCl acts as an oxidising agent, one of the atoms in the molecule is reduced. Take another quick look at your list; all you have are neutral elements or the most common cations of said elements. 0 0 Anonymous 1 decade ago NO3- is the oxidising agent. NO3–(aq) + 4H+(aq) + 3e– NO(g) + 2H2O a. NO3– b. H+ c. e– d. NO e. H2O An oxidizing agent is a chemical compound that readily transfers oxygen atoms, or is a on (iv) KMnO4 acts as a reducing agent in the presence of HCl. The oxidising agent is the reactant that gets reduced. Many other oxidizing agents are commonly used industrially as well as in the day-to-day lives of humans. Learn vocabulary, terms, and more with flashcards, games, and other study tools. For a species to act as a reducing agent, it should have the ability to get oxidised. So Nitrogen can get oxidized as wellas reduced. While in HNO2 the oxidation state of Nitrogen is +4. H 2 SO 4 into two gaseous products?