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

Find the value of magnetic moment of X?

A
0
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
2.73
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
3.6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1.41
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 0
When a mixture containing chloride ion is heated with K2Cr2O7 and concentrated H2SO4, deep orange-red fumes of chromyl chloride (CrO2Cl2) are formed.

K2Cr2O7+4NaCl+6H2SO42KHSO4+4NaHSO4+2CrO2Cl2+3H2O
Orange-red fumes

So in this case, X is CrO2Cl2.

Oxidation state of Cl=1,O=2,Cr=x

x+2×(2)+2×(1)=0x=+6

Oxidation State of Cr= +6

Electronic configuration of Cr+6 =[Ar] 3d0 4s0

It has zero unpaired d-electron. Thus its magnetic moment is 0.

Option A is the correct answer.

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