wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following reaction is correct for a given electrochemical cell at 25C ?
Pt(s)|Br(aq)|Br2(g)||Cl2(g)|Cl(aq)|Pt(s)

A
2Br(aq)+Cl2(g)2Cl(aq)+Br2(g)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Br2(g)+2Cl(aq)2Br(aq)+Cl2(g)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Br2(g)+Cl2(g)2Br(aq)+2Cl(aq)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
2Br(aq)+2Cl(aq)Br2(g)+Cl2(g)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 2Br(aq)+Cl2(g)2Cl(aq)+Br2(g)
For a given electrochemical cell at 25C
Pt(s)|Br(aq)|Br2(g)||Cl2(g)|Cl(aq)|Pt(s)
LHS denotes anode ,oxidation takes place:
So, anode half cell reaction :
2Br(aq)Br2(g)+2e eq(i)
RHS denotes cathode ,reduction takes place:
So, cathode half cell reaction :
Cl2(g)+2e2Cl(aq) eq(ii)
Adding both the equations:
Cl2(g)+2Br(aq)2Cl(aq)+Br2(g)

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon