Discussion
A band appears at \( 2350 \ \mathrm{cm^{-1}} \) and varies between scans. What is it?
Answer: B
A band at exactly 2350 that changes between the background and the sample scan is carbon dioxide in the beam path rather than anything in the sample. A nitrile would sit near 2250 and would not vary, an alkyne near 2120, and a carbonyl overtone near 3400. That a band's variability between scans identifies it as atmospheric is a diagnostic no band position alone could provide.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development