AP EAMCET201923 Apr 2019Morning ShiftChemistryChemical Bonding and Molecular StructureActual
Observe the following molecules: ( C ₂, ~N ₂, O ₂, ~F ₂ ) Which one of the following statements is correct for the above molecules?
Options
- AThey exhibit same magnetic property
- BThe have same number of bonding molecular orbtials and same number of antibonding molecular orbitals
- CThe sequence of molecular orbitals is as follows ( 2 p_z < ( 2 p_x= 2 p_y ) < ( 2 p_x^*= 2 p_y^* ) < 2 p_z^* )
- DThey have same bond order
Correct answer
B. The have same number of bonding molecular orbtials and same number of antibonding molecular orbitals
Step-by-step solution
The electronic configuration, magnetic property and bond order of given molecules are as follows: (i) ( aligned & C ₂=12 & = s^2 < ^* 1 s^2 < 2 s^2 < * 2 s^2 < 2 p_x ^2= 2 p_y ^2 aligned ) It is diamagnetic in nature. ( aligned BO & = 1 2 [N_b-N_a ] & = 1 2 [8-4]=2 aligned ) (ii) ( aligned & N ₂=14 & = s^2 < ^* 1 s^2 < 2 s^2 < ^* 2 s^2 < 2 p_x ^2 & = 2 p_y ^2 < 2 p_z ^2 aligned ) It is diamagnetic in nature. ( BO = 1 2 [10-4]=3 ) (iii) ( aligned O ₂= & 16= s^2 < ^* 1 s^2 < 2 s^2 < ^* 2 s^2 < & 2 p_z ^2 < 2 p_x ^2 <