Which of the following is not a property of \(\alpha\)- sulphur?
Answer & explanation
Correct answer: option 2
The correct answer is option 2. It has monoclinic structure.
\(\alpha \)-sulphur has a rhombic structure, not a monoclinic structure.
\(\alpha \)-sulphur, also known as rhombic sulphur, is the most common allotrope of sulphur. It is a yellow, crystalline solid with a rhombic crystal structure. It is readily soluble in carbon disulphide \((CS_2)\) and has a melting point of 385.8 K.
Monoclinic sulphur, also known as \(\beta \)-sulphur, is another allotrope of sulphur. It has a monoclinic crystal structure and is less stable than \(\alpha \)-sulphur. It is not as readily soluble in \(CS_2\) and has a melting point of 393 K.
The following table summarizes the key properties of α-sulfur and β-sulfur:
|
Property |
\(\alpha \)-sulphur |
\(\beta \)-sulphur |
|
Crystal structure |
Rhombic |
Monoclinic |
|
Solubility in \(CS_2\) |
Readily soluble |
Less soluble |
|
Melting point |
\(385.8 K\) |
\(393 K\) |