Physical Properties of Metals and Non-metals Questions in English

(D) Sulfur exists in nature as a polyatomic molecule.
Specifically,a single molecule of sulfur consists of $8$ sulfur atoms arranged in a puckered ring structure,commonly known as $S_8$.

(B) Sulphur is a non-polar covalent molecule. According to the principle of 'like dissolves like',it is insoluble in polar solvents like water but soluble in non-polar organic solvents. Carbon disulphide $(CS_2)$ is a well-known non-polar organic solvent in which sulphur readily dissolves.

(A) Sulfur is a non-metal that exists in various allotropic forms,most commonly as rhombic sulfur $(S_8)$.
The melting point of sulfur is approximately $388 \ K$ $(115 \ ^\circ C)$.
Therefore,the correct option is $A$.

(C) Based on the properties provided in the table:
$1$. Group $1$ materials are non-malleable,poor conductors of heat,and non-ductile. These are characteristic properties of non-metals.
$2$. Group $2$ materials are malleable,good conductors of heat,and ductile. These are characteristic properties of metals.
$3$. Metals are sonorous (produce a ringing sound when struck),which is why they are used to make bells. Therefore,the statement that materials in Group $2$ can be used to make bells is a scientifically accurate property of metals and cannot be false.