Question

In which condition iodine and phosphorus react ?

Answer 1

Phosphorus triiodide (PI3) is an unstable red solid which reacts violently with water. It is a common misconception that PI3 is too unstable to be stored; it is, in fact, commercially available. It is widely used in organic chemistry for converting alcohols to alkyl iodides. It is also a powerful reducing agent. Note that phosphorus also forms a lower iodide, P2I4, but the existence of PI5 is doubtful at room temperature.

Answer 2

Answer:

The unstable red solid phosphorus triiodide (PI3) interacts vehemently with water.

Contrary to popular belief, PI3 is commercially accessible and is not inherently unstable. It is frequently used to convert alcohols into alkyl iodides in organic chemistry. It is also an effective reducer.

Explanation:

The unstable red solid phosphorus triiodide (PI3) interacts vehemently with water.

Contrary to popular belief, PI3 is commercially accessible and is not inherently unstable. It is frequently used to convert alcohols into alkyl iodides in organic chemistry. It is also an effective reducer.

It should be noted that phosphorus can also produce a lower iodide, P214, however the presence of P15 at ambient temperature is questionable.

Because of the poor bonding or overlap between the 3p and 5p orbitals, PI3 is unstable.

Because the overlapping is weak, it is unstable. Iodine, on the other hand, has a relatively huge size. Five iodine cannot be placed next to phosphorus

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