Nuclear magnetic resonance involved the interaction between an oscillating magnetic field of electromagnetic radiation and the magnetic energy of the hydrogen nucleus or some other types of nuclei when these are placed in an external static magnetic field. The sample absorbs electromagnetic radiations is radiowave region at different frequencies since absorption depends upon the type of protons or certain nuclei contained in the sample.All nuclei carry a charge, so they will possess spin angular momentum. The moment of the spin angular momentum is quantized i.e. only those nuclei which have a finite value of spin quantum number(I˃0) will precess along the axis of rotation. From the exam point of view like CSIR-UGC-NET in Chemistry and GATE in Chemistry, NMR spectroscopy is very important branch of chemistry. Therefore many questions are asked from NMR spectroscopy in CSIR-UGC-NET in Chemistry and GATE in Chemistry. The questions of NMR are key topic for all the institute prepari