Question

6
Which is not standard state of element? (A) Graphite
(C) Monoclinic sulphur
(B) Oxygen gas
(D) White-phosphorous​

Answer 1

Answer:

(C) Monoclinic sulphur

Explanation:

•Standard state of sulphur is rhombic sulphur not Monoclinic sulphur.

•Rhombic is the most stable form of the sulphur that exists as Rhombic octahedral form .

• Standard state- The reference state for the material , thermodynamic state properties such as Gibbs energy, enthalpy etc.

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Answer 2

Answer:

Monoclinic sulphur

Explanation:

a) Monoclinic sulfur is a crystalline allotrope of sulfur obtained when rhombic sulfur is heated to 94.5°C.

b) Because of high reactivity it dissociate .