Question

resonance phenomenon is not shown by 1) co3. 2)nh4. 3) so4. 4) no3​

Answer 1

Answer:

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonds are much more common than ionic bonds.

Answer 2

The Resonance phenomenon is not shown in SO4. Option C is the correct answer.

• The Resonance occurs only when there are unpaired electrons, (or) lone pairs in the atom.
• Resonance is defined as all the possible structures by different bond distributions.
• Consider the given options,

=> Option A ($CO^{-2} _{3}$),

• Resonance is possible in the given compound as the negatively charged ion can be shared among other oxygens in the further possible resonating structures.

=> Option B ($NH^{+} _{4}$),

• Resonance is possible in the given compound as the positively charged ion can be shared among other Hyrogens in the further possible resonating structures.

=> Option C($SO_{4}$),

• Resonance is not possible in the given compound as the compound satisfies octet configuration, and there are no lone pairs. Hence resonance is not possible in this compound.

=> Option D ($NO^{-1} _{3}$),

• Resonance is possible in the given compound as the negatively charged ion can be shared among other oxygens in the further possible resonating structures.

Hence, The compound SO4 does not show the resonance phenomenon. Option C is the correct answer.