Red phosphorus can be obtained from white phosphorus by:

  • A
    Heating in an inert atmosphere
  • B
    Distilling in an inert atmosphere
  • C
    Dissolving in $CS_2$ and crystallizing
  • D
    Pouring the molten liquid into water

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Assertion : Molecular nitrogen is less reactive than molecular oxygen.
Reason : The bond length of $N_2$ is shorter than that of oxygen.

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