(A) 1.3
(B) 1.5
(C) 0.9
(D) 2.5
(A) The relative no. of protons present in the excited state and ground state
(B) Relative no. of neutrons present in the excited state and ground state
(C) Relative no. of nucleus present in the excited state and ground state
(D) All of the above
(A) High frequency
(B) Low frequency
(C) It is constant throughout the spectrum
(D) It doesn’t depends on chemical shift
(A) 15N
(B) 11B
(C) 19F
(D) 31P
(A) Shielding effect
(B) Spin-spin decoupling
(C) Spin-spin coupling
(D) Deshielding effect