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

What is the oxidation number and valency of carbon in methanal (HCHO)?

A
0, 4
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1,4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0,2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 0, 4
For compounds containing C atoms, the oxidation number of C atom =2nOnHnC
Here, nO,nHandnC represents the number of oxygen, hydrogen and carbon atoms respectively.
For methanal CH2O, the oxidation number of C atom =2nOnHnC=2×121=0
The valency of C in methanal is 4 as it is attached to 2 H atoms by two single bonds and one oxygen atom by a double bond.
HO||CH

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