CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Oxidation number of sulphur in Caros acid (H2SO5) is:

A
+5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
+8
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
+6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
+7
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C +6
In H2SO5, one peroxide bond is present.
So, the oxidation number of 2 oxygen atoms is 2. (Compare hydrogen peroxide, H2O2, 2 atoms of oxygen will get 1 oxidation number each).
The remaining 3 atoms will have 2 oxidation number each. This is a special case. Oxidation number of each hydrogen atom is +1 only.
So, finally the oxidation number of sulphur is given by,
x26+2=0 (equal to zero as the compound is neutral)
or, x=+6
The structure of caros acid is as follows:
89349_17943_ans_e989d8cb5c0a476fa4f6e7fc31e7a216.png

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