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प्रश्न
How are the crystalline solids classified?
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उत्तर
The types of the four main classes of crystalline solids:
- Ionic solids: Constituent particles are cations and anions. An examples are sodium chloride (NaCl), magnesium oxide (MgO), etc.
- Covalent network solids: Constituent particles are atoms. An examples are diamond, quartz (SiO2), silicon carbide (SiC), etc.
- Molecular solids: Constituent particles are monoatomic or polyatomic molecules. An examples are iodine (I2), dry ice (solid CO2), ice (solid H2O), etc.
- Metallic solids: Constituent particles are metallic ions in a sea of electrons. An examples are copper (Cu), iron (Fe), silver (Ag), etc.
संबंधित प्रश्न
Copper crystallises into a fcc lattice with edge length 3.61 × 10−8 cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm−3.
Solid CO2 is an example of ____________.
In calcium fluoride, having the flurite structure the coordination number of Ca2+ ion and F− Ion are ____________.
Classify the following solid.
Diamond
Classify the following solid.
NaCl
Classify the following solid.
Iodine
The hardest substance among the following is:
Which of the following is a network solid?
The major binding force in diamond, silicon and quartz is ______.
A reddish-pink substance on heating gives off a vapour which condenses on the sides of the test tube and the substance turns blue. If on cooling water is added to the residue it turns to original colour. The substance is ______.
