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प्रश्न
State differences between the properties of ionic compounds and covalent compounds.
Give five differences between electrovalent and covalent compounds.
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उत्तर
| Sr. No. | Basis of Distinction | Electrovalent (Ionic) Compounds | Covalent compounds |
| 1. | Physical State | They are generally crystalline solids. | They are generally volatile liquids or gases. |
| 2. | Melting and Boiling Points | They have high melting and boiling points. | They have low melting and boiling points. |
| 3. | Conductivity | They are bad conductors of electricity in solid state but are good conductors in the molten or aqueous states. | They do not conduct electricity. |
| 4. | Solubility | They are generally soluble in water but insoluble in organic solvents. | They are generally soluble in organic solvents but insoluble in water. |
| 5. | Rate of Reaction | They consist of ions. So, their reactions in solutions are fast. | They consist of molecules. So, their reactions in solutions are slow. |
संबंधित प्रश्न
Give electron dot diagram of the following:
nitrogen
Complete the following:
| Sodium | Phosphorus | Carbon | |
| Formula of chloride | |||
| Nature of bonding | |||
| Physical state of chloride |
Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond
Why do they exist as monoatoms in molecules?
Give reason
Argon does not react.
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
What do you understand by redox reactions?
Give the orbital diagram of the following:
Magnesium chloride
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^12_6C}\]
An atom X with atomic number 20 combines with atom Y with atomic number 8. Draw the dot structure for the formation of the molecule XY.
