Easy MCQ +4 / -1 PYQ · JEE Mains 2021

Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K?

  1. A White phosphorus
  2. B Yellow phosphorus
  3. C $\beta$-Black phosphorus
  4. D $\alpha$-Black phosphorus Correct answer

Solution

When red phosphorus is heated in a sealed tube at 803 K, $\alpha$-Black phosphorus is formed.

About this question

Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family

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