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Class 11thRedox ReactionsRedox ReactionsChemistryNcert Solutions Chemistry Class 11th

Questions and Answers:

8.41. Define electrochemical cell. How will you identify cathode and anode in an electrochemical cell?

2 Views|Posted 10 months ago
Asked by Shiksha User
1 Answer
V
10 months ago

Electrochemical cell is a device in which the redox reaction is carried indirectly and the decrease in free energy appears as electrical energy.

At cathode there is gain of electrons.
At anode there is loss of electrons.
In electrochemical cell anode is written on L.H.S while cathode is written on R.H.

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Similar Questions for you

How many of these compounds will undergo disproportionation on hydrolysis? CO?, NO?, Cl?, F?, ClO?, Cl?O?, N?O?, SO?, P?O??

RP
Raj Pandey

2 N O 2 + 4 + H 2 O → H N O 2 + 3 + H N O + 5 3

C l 2 0 + H 2 O → H C l - 1 + H O C l

2 C l O 2 + 4 + H 2 O → H C l O 2 + 3 + H C l O 3 + 5

C l 2 + 6 O 6 + H 2 O → H C l O 3 + 5 + C l O 4 + + +

40. Best reducing agent is:
(a) He              (b) Be           (c) Li            (d) Al

VB
Vishal Baghel

Kindly go through the solution

(c) Li

37. Which element is considered to have oxidation number of +3 in all its compounds?

(a) Be              (b) Li             (c) Al         (d) Sc

VB
Vishal Baghel

Kindly go through the solution

(c) Al

36. Oxidation number ofS in S2O8-2 is

(a) -2           (b) -6           (c) +2          (d) +6

VB
Vishal Baghel

Kindly go through the solution

(d) +6

32. Assertion: Na+ ion has an oxidation number of +1, Mg2+ ion, +2, Fe3+ ion, +3, Cl– ion, –1, O2– ion, –2; and so on.

Reason: For ions composed of only one atom, the oxidation number is equal to the charge on the ion.

VB
Vishal Baghel

Kindly go through the solution

(a)

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Chemistry Redox Reactions 2025

Chemistry Redox Reactions 2025

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