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Fertiliser Technology - Engineering

Q1:

Phosphorus vapour comprises of

A P

B P2

C P3

D P4

ANS:D - P4

Phosphorus vapor can exist in several forms, but the most common forms are P2 and P4.

  • P2 (molecular phosphorus): This is the most stable form of phosphorus vapor under normal conditions. It consists of P2 molecules, which are composed of two phosphorus atoms bonded together.
  • P4 (tetraphosphorus): This form of phosphorus vapor consists of P4 molecules, which are composed of four phosphorus atoms arranged in a tetrahedral structure.
While other forms of phosphorus vapor may exist under certain conditions, such as P and P3, they are less common and less stable compared to P2 and P4. Therefore, in most cases, phosphorus vapor primarily comprises P2 and P4 molecules.