pBlock ElementsII 1 Question 49

49. White phosphorus $\left(\mathrm{P}_{4}\right)$ has

(1998, 2M)

(a) six $\mathrm{P}-\mathrm{P}$ single bonds

(b) four $\mathrm{P}-\mathrm{P}$ single bonds

(c) four lone pairs of electrons

(d) $\mathrm{P}-\mathrm{P}-\mathrm{P}$ angle of $60^{\circ}$

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Solution:

  1. The structure of $\mathrm{P}_{4}$ is

It has six $\mathrm{P}-\mathrm{P}$ single bonds.

There are four lone pairs on four phosphorus. $\mathrm{P}-\mathrm{P}-\mathrm{P}$ bond angles are of $60^{\circ}$.