Hydrogen rings are made at _____ degree segments.
A. 360
B. 90
C. 180
D. None of the mentioned
Answer:A
Hydrogen rings are made at _____ degree segments.
A. 360 B. 90 C. 180 D. None of the mentioned
Explanation: Hydrogen rings are made at 180 degree segments. The total ring circumference must be 360 degree comprising two parts ( i.e Hydrogen rings) each of 180 degree.