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

In acidic medium, equivalent weight of K2Cr2O7(Mol.wt.=M) is:

A
M3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
M4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
M6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
M2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C M6
The oxidation state of chromium in K2Cr2O7 is +6.
Balanced chemical reaction of K2Cr2O7 in acidic medium will be-
K2Cr2O7+14H++6e2K++2Cr3++7H2O
In the above reaction, oxidation state chromate ion is changing from +6 to +3, i.e., the transfer of 6 electrons is taking place.
Equivalent weight = M6

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