Which of the following statements is not correct?

• A

  Both rhombic and monoclinic sulphur are soluble in $\mathrm{CS}_2$
• B

  Both rhombic and monoclinic sulphur contain $\mathrm{S}_8$ rings
• C

  $\mathrm{SO}_2$ is soluble in water
• Correct answer
  D

  $\mathrm{S}_2$ in vapour state is diamagnetic

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