Discussion
Why must the two columns differ in selectivity?
Answer: C
If both phases retained compounds in the same order, the second column would simply re-perform the first separation and add nothing. Length, carrier gas and oven programming are practical details. The gain comes entirely from the two dimensions being independent, which is why a non-polar column is typically paired with a polar one rather than with another of the same kind.
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