The bond order in $\mathrm{NO}$ is $2.5$ while that in $\mathrm{NO}^{+}$is 3 . Which of the following statements is true for these two species?

• A

  Bond length in $\mathrm{NO}^{+}$is greater than in $\mathrm{NO}$
• B

  Bond length is unpredictable
• C

  Bond length in $\mathrm{NO}^{+}$in equal to that in $\mathrm{NO}$
• Correct answer
  D

  Bond length in $\mathrm{NO}$ is greater than in $\mathrm{NO}^{+}$

Hence, the correct answer is option: 'D'.