Q1: A-F

A- Give two reasons Why the same catalyst prepared using different synthesis methods may have the same Raman spectra but different X-ray diffraction patterns?

B- Why Vanadium phosphate(VPO) catalysts prepared in different ways may have different X-ray diffraction patterns but the same Raman spectra?

C- Explain why infrared (IR)and Raman spectra of the same material can be different?

D- why the peak positions on Raman spectra do not shift when a laser of different frequency is used as the light source?

E- Why are sensitive detectors needed on Raman spectrometers?

F- Why Raman spectra contain both stokes and anti-Stokes lines?