CBSE Class 11 Chemistry Redox Reaction Worksheet Set B

CBSE Class 11 Chemistry Worksheet - Redox Reactions (1) CBSE,CCE and NCERT students can refer to the attached file. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. The study material available on our website for all CBSE classes and subjects have been prepared by teachers from all over the country. All study material has been carefully designed keeping into mind the latest CBSE examination trends.  

Time: 30 min

Ch#1 : Redox Reactions -01

Full Marks: 20

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)

 

Please refer to the link below for CBSE Class 11 Chemistry Worksheet - Redox Reactions (1)

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