Question

Jaswinder kept one of the non-metal in
open air and it cathes fire. Name this
non- metal.
2) Mercury
b) Cobber
Phosphorus
d) Nene of the above.​

Answer 1

Answer:

(c) Phosphorus

Explanation:

It is a very reactive non-metal out of the above options and highly unstable, which easily catches fire in the presence of air at room temperature. The reason for high reactivity is an angular strain (the structure is aligned at an angle of 60°). It is present in three forms; black, red, and white phosphorus. The exposure of white phosphorus to the air is a highly reactive exothermic reaction, and it produces white dense fumes of P₄O₁₀.

The reaction is P₄ + 5O₂ → P₄O₁₀ (white dense fumes)

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