Question

during shielding effect the value of chemical shift decrease due to presence of electron donating group induced magnetic field and applied magnetic field both opposed to each other due to this building signal obtained on right hand side on the chemical shift scale in Hindi means




​

Answer 1

Answer:

Electron with-drawing groups can decrease the electron density at the nucleus, deshielding the nucleus and result in a larger chemical shift. ... As can be seen from the data, as the electronegativity of X increases the chemical shift, δ increases