The correct statement among the following is:a)N2 has higher bond orde...
Bond order and bond length:
The bond order of a molecule is defined as the number of chemical bonds between a pair of atoms. It is determined by the difference between the number of bonding and antibonding electrons. Bond length, on the other hand, refers to the distance between the nuclei of two bonded atoms.
Bond order and dissociation energy:
Dissociation energy is the energy required to break a chemical bond and separate the atoms. It is directly related to the strength of the bond. Higher bond order indicates a stronger bond and thus higher dissociation energy.
Comparison between N2 and N2:
N2 and N2 are both diatomic molecules of nitrogen, but they differ in the arrangement of their electrons. N2 has a triple bond between the two nitrogen atoms, while N2 has a double bond.
Bond order and bond length comparison:
Option A states that N2 has a higher bond order than N2 and hence has a larger bond length compared to N2. This is incorrect because a higher bond order indicates a stronger bond, leading to a shorter bond length. Therefore, option A is incorrect.
Option B states that N2 has a higher bond order than N2 and hence has a larger bond length compared to N2. This is also incorrect for the same reason mentioned above. Therefore, option B is incorrect.
Option C states that N2 has a higher bond order than N2 and hence has higher dissociation energy compared to N2. This is the correct statement. Since N2 has a triple bond and N2 has a double bond, N2 has a higher bond order and therefore a stronger bond. This stronger bond requires more energy to break, leading to higher dissociation energy. Therefore, option C is correct.
Option D states that N2 has a lower bond order than N2 and hence has lower dissociation energy compared to N2. This is incorrect because N2 actually has a lower bond order than N2, as explained earlier. Therefore, option D is incorrect.
In conclusion, option C is the correct statement because N2 has a higher bond order than N2 and therefore has higher dissociation energy compared to N2.