Ionic Solid: Identifying the Ionic Solid Among Given Options

Which one of the following is an ionic solid?

a. graphite
b. nickel
c. ammonium chloride
d. silicon carbide, SiC
e. sucrose, C12H22O11

Answer:

Among the given options, ammonium chloride is the only ionic solid.

In your question, you're asking which among the given options is an ionic solid. An ionic solid is a type of solid that contains ions - atoms or groups of atoms that carry a net positive or negative charge.

The right answer is option c - ammonium chloride. It is an ionic compound because it results from the transfer of one or more electrons from a metal (in this case, ammonium - NH4+) to a non-metal (here, chloride - Cl-), leading to the creation of ions. The ions then bind together due to the electrostatic forces of attraction, forming an ionic compound - or in the solid state, an ionic solid.

As for the other options, graphite is a covalent network solid, nickel is a metallic solid, silicon carbide is another covalent network solid, and sucrose is a molecular (or covalent) solid. None of these is an ionic solid.