Describe the use of broadband decoupling and off resonance decoupling in 13C NMR
spectroscopy.

 List the benefits and limitations of COSY technqiue. 

Differentiate between the following compounds on the basis of UV spectra. Explain
your answer.

 Write the principle of 2D NMR. How is it different from ID NMR?

Explain the basis of 1H NMR spectroscopy. Which of the atomic nucleus out of 12C,
2H, 19F is not NMR active and which is NMR active? Explain you answer.

Predict the expected UV and IR spectra of the following compound

Explain the solvent effect in the simplication of complex spectra taking a suitable
example.