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

In the following reactions:
AlCl3+3KAl+3KCl
SO2+2H2S3S+H2O
3I2+6NaOHNaIO3+5NaI+3H2O
Identify the correct option which represents the oxidised substances?

A
K,SO2,I2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
K,H2S,I2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
AlCl3,H2S,I2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
AlCl3,SO2,I2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C K,H2S,I2
(i) Al3+Al0 and K0K+
Thus, Al3+ is reduced and K is oxidised.
Note : The atom having higher oxidation number in a conjugate redox pair is oxidant and is therefore reduced.
(ii) Similarly, SO2 is reduced and H2S is oxidised.
(iii) Similarly, neither one is reduced nor one is oxidised ( No change in oxidation number during reaction).
(iv) I2 is itself oxidised as well as reduced.
I022I5++10e
2e+I022I

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electrochemical Cell
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon