Ask Electrochemical Cells question free
×
Electrochemical Cells Free Doubts and Solutions
CBSE - XII Science - Chemistry - Electrochemistry
consider the following reaction
Asked by anithaanu629940
11th May 2024,
12:31 PM
CBSE - XII Science - Chemistry - Electrochemistry
what is electrochemical cell
Asked by summiafroz31
6th February 2024,
8:39 PM
CBSE - XII Science - Chemistry - Electrochemistry
what is galvanic cell
Asked by aryamankrsinha2002
29th November 2023,
11:39 AM
CBSE - XII Science - Chemistry - Electrochemistry
the electric charge present on di positive magnesium ion is
Asked by banneramadevi
26th July 2023,
8:51 PM
CBSE - XII Science - Chemistry - Electrochemistry
How to make simple equations for anode and cathode in standard electrode potential? How to understand their sign if the value of reduction and oxidation in questions?
Asked by Poojanisha1988
19th July 2023,
9:59 PM
CBSE - XII Science - Chemistry - Electrochemistry
20
Asked by priyanshusahani038
16th June 2022,
1:34 PM
CBSE - XII Science - Chemistry - Electrochemistry
in an electrochemical cell
Asked by jajimuji2306
3rd April 2022,
1:38 PM
CBSE - XII Science - Chemistry - Electrochemistry
Calculate the no. Of coulpmb required to deposit 40.5g AL when the electrode rxn is AL3+ +3e--->AL
Asked by Harshfarwaha
23rd July 2020,
3:27 PM
CBSE - XII Science - Chemistry - Electrochemistry
when zinc plate is dipped into a blue coloured solution of cuso4 then its colour becomes white why
Asked by sourabhkumar9923
19th May 2020,
8:21 PM
CBSE - XII Science - Chemistry - Electrochemistry
Describe the construction of galvanic cell
Asked by farhanafirdos9
11th March 2020,
5:25 PM
CBSE - XII Science - Chemistry - Electrochemistry
cell constant G*= l /A Here A stands for area of Electrode or Electrolytic solution
Asked by ssharondaniel
27th July 2019,
6:22 PM
CBSE - XII Science - Chemistry - Electrochemistry
What is galvanic cell?
Asked by kripanjalihimansu
28th February 2019,
6:57 AM
CBSE - XII Science - Chemistry - Electrochemistry
An electrochemical cell stops working after sometime. Why ?
Asked by govtsecschoolnayaganv051
12th September 2018,
5:40 PM
CBSE - XII Science - Chemistry - Electrochemistry
Construct a cell which has the following electrodes:
Zn in 1 molar 
and Cu in decimolar 
. Electrode potential of Cu is more than Zn.
Asked by sunil2791
20th January 2018,
10:36 AM
CBSE - XII Science - Chemistry - Electrochemistry
I sent a question on 6 August but its not yet answerd...but questions asked on 7 August are answered... Please send my answer right now...
Asked by Kalita Padmanath
7th August 2017,
11:59 AM
CBSE - XII Science - Chemistry - Electrochemistry
Two Half Cell Reactions in an Electrochemical cell is given as follows:
MnO4- + 8H+ + 5e- ---> Mn2+ + 4H2O E0cell = +1.51V
Sn2+ ---> Sn2+ + 2e- E0cell = 0.15V
How to write the overall cell reaction and calculate E0cell?
How to predict weather the reaction will favour product formation?
MnO4- + 8H+ + 5e- ---> Mn2+ + 4H2O E0cell = +1.51V
Sn2+ ---> Sn2+ + 2e- E0cell = 0.15V
How to write the overall cell reaction and calculate E0cell?
How to predict weather the reaction will favour product formation?
Asked by Prem
2nd August 2017,
10:14 AM
CBSE - XII Science - Chemistry - Electrochemistry
Cu can reduce Zn ions if the resultant Cu ions can be kept at low conc.by formation of an insoluble salt. What is the max. conc. of Cu(2+) in solution if this reaction is to occur when Zn(2+) is 1 molar?
Asked by Kalita Padmanath
24th July 2017,
12:44 AM
CBSE - XII Science - Chemistry - Electrochemistry
Std reduction potential for calomel half cell is 0.28 V AT 25 C. Calculate half potential when 0.1 N KCl solution is used.
Asked by Kalita Padmanath
23rd July 2017,
11:42 PM
CBSE - XII Science - Chemistry - Electrochemistry
WILL Mg reduce CuSO4?
Asked by Kalita Padmanath
23rd July 2017,
11:30 PM
CBSE - XII Science - Chemistry - Electrochemistry
A Cu rod is dipped in 0.1 M CuSO4 solution. Calculate the potential of this half cell if CuSO4 UNDERGOES 90% dissociatio at 25 C.
Asked by Kalita Padmanath
23rd July 2017,
11:26 PM
CBSE - XII Science - Chemistry - Electrochemistry
why is oxidation of chlorine preffered over oxidation oh H2O
Asked by arindam2129
17th May 2017,
9:48 PM
CBSE - XII Science - Chemistry - Electrochemistry
Please suggest the method to find log and antilog as i m having difficulty in solving numericals related to that??? Also mention some examples along with the method??
Asked by ayushi
5th July 2016,
7:28 PM
CBSE - XII Science - Chemistry - Electrochemistry
Explain why does a galvanic cell stop working over a period of time?
Asked by Topperlearning User
22nd June 2016,
2:36 PM
CBSE - XII Science - Chemistry - Electrochemistry
What is the function of a salt bridge in the electrochemical cell?
Asked by Topperlearning User
22nd June 2016,
2:35 PM
CBSE - XII Science - Chemistry - Electrochemistry
Write the cell reaction for the following cell? Zn| Zn2+ || Cu2+ | Cu.
Asked by Topperlearning User
22nd June 2016,
2:35 PM
CBSE - XII Science - Chemistry - Electrochemistry
Consider the following equations Au3+(aq) + 3e- Au(s); EO = 1.50V AuCl4-+ 3e- Au(s) + 2Cl-; Eo =1.00V i) Which of these species is the best oxidizing agent? ii) At which electrode would gold be deposited? iii) Out of AuCl3 and NaAuCl4, Au can be plated better from which solution?
Asked by Topperlearning User
22nd June 2016,
2:35 PM
CBSE - XII Science - Chemistry - Electrochemistry
Setup the electrochemical cell for the reaction given below. 2Fe3+(aq) + Sn2+(aq) 2Fe2+(aq) + Sn4+(aq).
Asked by Topperlearning User
22nd June 2016,
2:34 PM
CBSE - XII Science - Chemistry - Electrochemistry
Why do we use inert electrolytes like KCl, KNO3, and NH4Cl in a salt bridge?
Asked by Topperlearning User
22nd June 2016,
2:32 PM
CBSE - XII Science - Chemistry - Electrochemistry
my question is you say in 3 part in electrichemical cell that cu+/cu will be the greater electrod potential soo those have larger electrod potential so we prefer them cathod and those are lesser value those are anode little confusion
see in part 3 timming 00:05:45
and why we use electrod potential what is the use
Asked by saggugurupal
15th June 2016,
12:21 PM
CBSE - XII Science - Chemistry - Electrochemistry
In case of functions of salt bridge we say that it completes circuit but,the electrons will still be flowing from anode to cathode and current will flow initially even if we do not connect two solutions with a salt bridge(due to redox rxns taking place) then why we say so that it completes circuit even if current can flow for sometime before electrical neutraliy of system is imbalanced?
Asked by upmaniousagarika
8th May 2016,
12:28 AM
CBSE - XII Science - Chemistry - Electrochemistry
Question no.15
Asked by Pratik
10th October 2015,
12:35 PM
CBSE - XII Science - Chemistry - Electrochemistry
given following cell Al/Al3+ // Fe2+/Fe
the value of gibbs energy change ( given E (Al - Al 3+=1.66 )
and E (Fe - Fe2+ = 0.44V0
Asked by thakurpratyush5
9th July 2015,
7:45 PM
CBSE - XII Science - Chemistry - Electrochemistry
calculate molar conductivity at infinite dilution of H2SO4 .given molar conductivity at infinite dilution of HCl = 426 , molar conductivity at infinite dilution of NaCl = 126.5 and molar conductivity at infinite dilution of Na2SO4 =260 at 25 degree celcius. (units are scm2/mol)
Asked by thakurpratyush5
30th June 2015,
5:22 PM
CBSE - XII Science - Chemistry - Electrochemistry
three faraday of electricity is passed through molten Al2O3 ,aqueous solution of CuSO4 and molten NaCl taken in three different electrolytic cells .The moles of Al , Cu , Na deposited on cathode will be in ratio of :-
Asked by thakurpratyush5
30th June 2015,
5:15 PM
CBSE - XII Science - Chemistry - Electrochemistry
For the Q.no:5 of page no 91 in the ncert textbook, i have a doubt in your in text book solutions. Why have u written Br & H+ in the denominator. Br- should come in the numerator,right?
Asked by Ajnu C S
11th February 2015,
12:44 PM
CBSE - XII Science - Chemistry - Electrochemistry
Sir
I would like to know why galvanic cell should operate in a thermodynamically reversible manner.
Asked by pandeyknk
28th January 2015,
12:12 AM
CBSE - XII Science - Chemistry - Electrochemistry
1.What defect creates when some P atom is added to Si?
2.Due to which reason O2 gas is librated from blood of tissues of animals? [partial pressure of oxygen gas is MORE or LESS in tissues]
3. Which comounds are obtained by sandmayer reaction? [phenol, aniline, chlorobenzene or benzyl chloride]
4. The potential of electrochemical cell is dependent on which factor mass of electrode or nature of electrode?
5. identify X and Z in reaction
X gives Y when heated in presence of Zn dust and then Y gives Z on alkylation with Propene
Asked by Dhriti
24th October 2014,
12:23 PM
CBSE - XII Science - Chemistry - Electrochemistry
At eqilibrium why and how the electrode potential of the two half cells become equal?
Asked by Nishtha Sardana
25th July 2014,
10:14 AM
CBSE - XII Science - Chemistry - Electrochemistry
what are concentration cells?why the oxidation takes place on the electrode with lower conentration in a concentration cell in which both the electrodes are of the same type but the concentrations of ions in them are different?
Asked by Nishtha Sardana
25th July 2014,
10:11 AM
CBSE - XII Science - Chemistry - Electrochemistry
sir how to find oxidation no if it arrises in decimal form such as1.3 or 5.23.
is your site provide video regarding topics of jee?
Asked by amanj
8th June 2014,
2:56 PM
CBSE - XII Science - Chemistry - Electrochemistry
Give a diagrammatic representation of the working of the Daniel cell for the following conditions: i) When Ex < 1.1V ii) When Ex > 1.1V
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Electrochemistry
In copper-zinc cell what would be the effect on cell voltage, if i) SO42- ions are added to Cu2+ ion compartment. ii) CuSO4 solution is added to Cu2+ ion compartment
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Electrochemistry
Explain the energy changes that occur in a galvanic cell. Also mention its electrode potential?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Electrochemistry
What are redox reactions? Explain with an example?
Asked by Topperlearning User
4th June 2014,
1:23 PM
