Analytical Chemistry
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Analytical Chemistry
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25 Questions

1. In NMR spectroscopy radiation source used is
2. How many PMR signals will come in NMR spectra of vinylchloride?
3. In gel filtration chromatography which compound is elute first?
4. In XY2 molecule vibration of atom is take place in same plan and only bond angle is change then it is called
5. The region of an infra-red spectrum where many absorptions take place is known as the ____________
6. In a triplet, the relative peak areas are in the ratio _______
7. What is range of chemical shift (δ) in PMR spectra?
8. The number of theoretical plates depends on
9. In IR spectra, alkyne has characteristic peak at
10. Radiofrequency radiation is associated with
11. Rod of sintered silicon is present in which of following?
12. Specifically used technique for identification of DNA is
13. Removal of a single electron from a molecule results in the formation of
14. Cyclo butane have NMR signal is
15. Qualitative analysis in GLC is based on
16. Nuclear magnetic moment is not shown by
17. In Raman spectroscopy physical properties measured is
18. _____________ is assayed by acid'base back titration.
19. What is the wavelength of mid-IR?
20. Intensities in NMR spectrum indicate
21. In mass spectroscopy positively charged ions can be produced by (P) Heating the sample (Q) Bombarding the sample with high energy electrons (R) Bombarding the sample with high energy protons (S) Chemical oonization
22. The unit of magnetic field strength in NMR is
23. Gratings are generally preferred over prisms for dispersive IR because:
24. In IR spectra, alkene have C=C stretching at
25. PMR of 2-methyl 1-pentene gives how many peaks?

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