Which one of the following statements about ozone and ozone layer is true? The s-Block Elements. A) In a redox reaction, an electron is lost by the reducing agent. A) Oxidation is the loss of electrons. AIPMT 1997: Which of the following involves a redox reaction? Potassium loses electrons during the reaction and the electrons are gained by hydrogen in water. D) A reaction involving elemental oxygen is a redox reaction. Potassium reacts with water to form potassium hydroxide and hydrogen gas which is a redox type of reaction. B) In a redox reaction, an electron is lost by the oxidizing agent. (blank 8) 5Fe2+ + MnO2 + 8H+ + 5Fe3+ + Mn2+ + 4H2O. Choose the disproportionation reaction among the following redox reactions. KEAM 2015. 8. The p-Block Elements - Part2. E) All of the above statement are true. Here magnesium atom transfers two electrons one each to the two chlorine atoms. For the redox reaction shown above, determine which of the following statements are true. CaC 2 (s) + H 2 O(l) HCCH(g) + CaO(s) Ans: False 29. What will happen to the height (h) of the mercury column in the manometer shown below if the stopcock is opened, given that the atmospheric pressure is 755 mmHg? (A) Reaction of H2SO4 with NaOH (B) Production of ozone from oxygen in the atmosphere by A) MnO4 - is being oxidized to Mn2+ B) Mn in MnO4 - undergoes a change in oxidation state from -1 to +2. iii) Which element is being oxidized? Which of the following is true about a redox reaction?OIn a redox reaction, an electron is lost by the reducing agent.In a redox reaction, an electron is lost by the oxidizing agent.In a redox reaction, the oxidized species mains electrons.In a redox reaction, the reduced species loses electrons.O We have provided Redox Reactions Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. C) In a redox reaction, the oxidized species gains electrons. A) h will decrease B) h will not change C) h will increase Determining whether a reaction is a redox reaction or a non-redox reaction: (a) If one of the elements shows a change in oxidation number, it is sufficient to conclude that the reaction is a redox reaction. ii) Write the balanced equation for the complete reaction. TRUE/FALSE: The following reaction is a redox reaction. (6 points) The reaction type is redox reaction. i) What are the products of this reaction? iv) Which element is being reduced? 10. Classify the statements about redox reactions as true or false. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Which Of The Statements Below Is True About The Following Redox Reaction Occurring In Aqueous Solution? What mass of silver chloride can be prepared by the reaction of 100.0 mL of 0.20 M silver nitrate with 100.0 mL of 0.15 M calcium chloride? Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 8 Redox Reactions with Answers Pdf free download. AB, ABC, BCD, etc. Identify the correct statement. 28. Redox reactions are reactions during which electron transfer takes place. Which of the following statements about redox reactions is FALSE? ): A) Cl is oxidized B) Cl is reduced C) O is oxidized D) O is reduced E) water is oxidized F) water is reduced 2.) C) O in MnO4 - undergoes a change in oxidation state from -1 to -2. In non-redox reactions, the oxidation numbers of all elements remain unchanged. ClO4− + Cl− <--> ClO− + Cl2 (Acidic) 1.) Since potassium reacts by losing electrons, that is an oxidation reaction. The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ∘C. D) In a redox reaction, the reduced species loses electrons. C) A reaction can result in either oxidation or reduction, not both. Which of the following is true about a redox reaction? 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