Question:
Some substances are given below
Ag: CO\(_2\) (s); SiO\(_2\) (s); ZnS (s)
SO\(_2\) (s); A/N: HCl (s); H\(_2\)O (s)
The number of molecular solids and network solids in the above list is respectively.
Some substances are given below
Ag: CO\(_2\) (s); SiO\(_2\) (s); ZnS (s)
SO\(_2\) (s); A/N: HCl (s); H\(_2\)O (s)
The number of molecular solids and network solids in the above list is respectively.
Show Hint
Remember the basic properties of molecular and network solids.
- Molecular solids have low melting points and are soft.
- Network solids are hard and have high melting points due to strong covalent bonds.
- Molecular solids have low melting points and are soft.
- Network solids are hard and have high melting points due to strong covalent bonds.
Updated On: Mar 19, 2025
- 3, 3
- 2, 4
- 1, 4
- 4, 2
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The Correct Option is D
Solution and Explanation
- Molecular solids are those which consist of discrete molecules held together by van der Waals forces.
- Network solids are those where atoms are covalently bonded in a continuous network.
From the list:
- Ag (Silver) is a metallic solid, so it is not counted. - CO\(_2\), SiO\(_2\), and ZnS are network solids.
- SO\(_2\), HCl, and H\(_2\)O are molecular solids.
Thus, the number of molecular solids is 2, and the number of network solids is 4.
- Ag (Silver) is a metallic solid, so it is not counted. - CO\(_2\), SiO\(_2\), and ZnS are network solids.
- SO\(_2\), HCl, and H\(_2\)O are molecular solids.
Thus, the number of molecular solids is 2, and the number of network solids is 4.
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