Read and download free pdf of CBSE Class 11 Chemistry Redox Reaction Worksheet. Students and teachers of Class 11 Chemistry can get free printable Worksheets for Class 11 Chemistry Chapter 8 Redox Reactions in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 11 students should practice questions and answers given here for Chemistry in Class 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Chemistry Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 11 Chemistry Chapter 8 Redox Reactions
Class 11 Chemistry students should refer to the following printable worksheet in Pdf for Chapter 8 Redox Reactions in Class 11. This test paper with questions and answers for Class 11 will be very useful for exams and help you to score good marks
Class 11 Chemistry Worksheet for Chapter 8 Redox Reactions
Instructions:
1. All questions are compulsory.
2. Please give the explanation for the answer where applicable.
Q1 - Name the oxidiser and reducer in the following reaction:-
SnCl2 + 2FeCl3 SnCl4 + 2FeCl2 (1 Mark)
Q2 - Define oxidation number and calculate the oxidation number of Cr in K2Cr2O7. (2 Marks)
Q3 - What is the usual oxidation state of oxygen? In which type of compounds oxygen shows an oxidation no. of -1 and +2? (1 Mark)
Q4 - What is meant by half reaction? (1 Mark)
Q5 - Balance the following equation in the acidic medium by oxidation number method. (5 Marks)
Q6 - Write the half reactions for the following Redox reaction;-
(a) 2Fe3+(aq) +2I-(aq) 2Fe2+(aq) + I2(aq)
(b) Zn(s) + 2H+(aq) Zn2+(aq) + H2(g) (2 Marks)
Q7 - Identify the strongest and the weakest reducing agents from the following metals:- Zn, Cu, Ag, Na (2 Marks)
Q8 - The standard reduction potential for Cu2+/Cu is +0.34 V. Calculate the standard reduction potential at pH =14 for the above couple Ksp of Cu(OH)2 is 1.0X10-19. (3 Marks)
Q9 - Calculate pH of the following half cell Pt, H2/H2SO4. The oxidation potential is +0.3 V. (3 Marks)
Q1. Explain the terms: oxidation & reduction in terms of electrons. Give one e.g. n each case.
Q2. Define the terms: - oxidizing agent & reducing agent according to electronic concept. Give one e.g. in each case.
Q3. What are redox reactions? Give one e.g.
Q4. Explain what happens when a zinc rod is dipped in CuSO4 solu.
Q5. Write the following redox reactions using half equations:- (a) Zn + PbCl2 → Pb + ZnCl2
(b) 2Fe+3 + 2I- → I2 + 2Fe+2 (c) 2Na + Cl2 → 2NaCl (d)Mg + Cl2 → MgCl2 (e) Zn + 2H+ → ZN+2 + H2
Q6. Define oxidation number. Write general rules of assigning oxidation numbers to various atoms in ions & molecules.
Q7. Explain the terms: - (1) oxidation (2) Reduction (3) Oxidising agent (4) Reducing agent in terms of oxidation number. Give two e.g. to illustrate your answer:-
Q8. Discuss the following redox reactions:- (a) Combination reactions (b) Decomposition reactions
(c) Metals & Non-Metals displacement reactions (d) Disproportionation reaction. Give one e.g. in each case.
Q9. Draw a labelled diagram for the Daniel cell. Discuss its working.
Q10. Discuss briefly the function of the salt bridge in an electrochemical cell.
Q11. What is the oxidation No. of (i) C in CH2O (ii) H in [Pt(C2H4)Cl3] (iii) N in HNO3
Q12. Identify the oxidizing agent, reducing agent, substances oxidized & reduced in the following reactions;-
(i) MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O (ii) 2MnO4- + 10Cl-1 16H+ → 7Mn+2 ⊥ < 10
Q13. Justify that the reaction:- 2Cu2O + Cu2S → 6Cu + SO2 is a redox reaction.
Identify the species oxidized, reduced, which acts as oxidant & which acts as reductant?
Q14. Find out the oxidation number of underline atoms in the following species :- PbSO4, BrF3, CrO4-2, MnO4, Sb2O5, (NH4)2SO4, C6H12O6, CH4, Cr2O7-2, Na2S4O6, H2S2O8
Q15. Which of the following species, do not show disproportion reaction and why?
ClO-, ClO2-, ClO3- & ClO4-
Also write reaction for each species that disproportionate.
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CBSE Class 11 Chemistry Chapter 8 Redox Reactions Worksheet
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Worksheet for Chemistry CBSE Class 11 Chapter 8 Redox Reactions
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Chapter 8 Redox Reactions worksheet Chemistry CBSE Class 11
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Chapter 8 Redox Reactions CBSE Class 11 Chemistry Worksheet
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Worksheet for CBSE Chemistry Class 11 Chapter 8 Redox Reactions
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