White phosphorus catches fire in air to produce dense white fumes. This is due to the formation of

Pure $HNO_3$ is a colorless liquid,but it turns light brown in the presence of light. This is due to its decomposition into which of the following substances in small amounts?

Identify the false statement about red phosphorus.

Which allotropic form of phosphorus is the most stable,least reactive,and possesses a graphite-like structure?

Write four characteristic properties of $p$-block elements.

Which of the following oxides is the anhydride of orthophosphoric acid?