Question

When kelt in air and darkness, which of the following elements glow spontaneously?

1. Red Phosphorus
2.White Phosphorus
3.Scarlet Phosphorus
4.Violet Phosphorus




















Ans. Red Phosphorus​

Answer 1

Answer:

White phosphorus

Explanation:

White or yellow phosphorus glows in the dark due to its slow combustion in air. its energy of combustion is released as light. this property is known as phosphorescence.

Answer 2

Answer:

White Phosphorus

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