Which of the following statements are correct for CCl₄?

All are correct

The correct answer is (4) All are correct.

CCl₄ is used as fire-extinguisher under the name pyrene: Carbon tetrachloride (CCl₄) is a colorless, non-flammable liquid that was once used as a fire extinguisher under the name pyrene. However, it is no longer used as a fire extinguisher because it is a toxic and harmful substance.

It is stable even at high temperature: CCl₄ is a stable compound that is not easily decomposed. It is stable even at high temperatures.

Its vapours are inflammable: The vapors of CCl₄ are inflammable, meaning that they can catch fire. However, the liquid itself is non-flammable.

Therefore, all of the statements about CCl₄ are correct.