Question:
Which of the following is not an example of covalent solid?
Which of the following is not an example of covalent solid?
Show Hint
Common covalent (network) solids are
\[
\boxed{
\mathrm{Diamond,\ SiC,\ SiO_2,\ BN,\ AlN}.
}
\]
These possess very high melting points and are extremely hard.
Updated On: Jul 18, 2026
- SiC
- SiO$_2$
- AlN
- ZnS
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Recall the examples of covalent (network) solids.
Network covalent solids consist of atoms joined by strong covalent bonds throughout the crystal.
Examples include
\[
\boxed{\mathrm{SiC,\ SiO_2,\ AlN}.}
\]
Step 2: Identify the compound which is not a covalent solid. Zinc sulphide (\(\mathrm{ZnS}\)) is predominantly an ionic solid with some covalent character and is not classified as a covalent network solid. Hence, \[ \boxed{\mathrm{ZnS}} \] is not an example of a covalent solid. Therefore, the correct option is \(\boxed{(D)}\).
Step 2: Identify the compound which is not a covalent solid. Zinc sulphide (\(\mathrm{ZnS}\)) is predominantly an ionic solid with some covalent character and is not classified as a covalent network solid. Hence, \[ \boxed{\mathrm{ZnS}} \] is not an example of a covalent solid. Therefore, the correct option is \(\boxed{(D)}\).
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