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Types of Solutions Based on the Concentration of the Solution

Thermodynamic...

Question

Thermodynamically most stable allotrope of phosphorus is_____

A

red

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B

white

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C

black

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D

yellow

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Solution

The correct option is C black
Black phosphorus is the most stable form; the atoms are linked together in puckered sheets, like graphite. Because of these structural similarities black phosphorus is also flaky like graphite and possesses other similar properties.

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Similar questions

Q. Of the given 3 allotropes of Phosphorus – white, red and black, which is the most stable thermodynamically?

Q. The most thermodynamically stable allotropic form of phosphorus is_______.

Which of the following phosphorus allotropes is thermodynamically the most stable?

Δ_{f} H^{o}

for white phosphorus has been taken to be zero, whereas black phosphorus is the most stable allotrope of phosphorus and this is the only exception.

REASON:
The reference standard state of white phosphorus is taken despite the fact that this form is not the most stable allotrope but simply the most reproducible form of phosphorus.

Q. Which allotropic form of carbon is thermodynamically the most stable ?

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Types of Solutions Based on the Concentration of the Solution

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