Question

NO2 is a electron donating group ​

Answer 1

Answer:

Substituents with pi bonds to electronegative atoms (e.g. -C=O, -NO2) adjacent to the pi system are electron withdrawing groups (EWG) - they deactivate the aromatic ring by decreasing the electron density on the ring through a resonance withdrawing effect.

Answer 2

Answer:

NO₂ is not an electron donating group. it is an electron withdrawing group.

Explanation:

• NO₂ is an EWG, or an electron withdrawing group.

• O is more electronegative than N. So, the N-O bond is polarized towards O. Such polarisation will decrease the electronegativity of nitrogen. As a result the Nitrogen atom acquires a slight positive charge on itself.
• There are two oxygen atoms attached to the central Nitrogen atom. As the electronegativity on nitrogen decreases, it tends to withdraw electrons from atoms which are less electronegative towards itself.
• The shared image  shows the effect through the resonance structures of NO₂. A small positive charge can be seen on the nitrogen atom which causes NO₂ to be an electro withdrawing group.