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प्रश्न
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
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उत्तर
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MgCl2 - Electrovalent compound |
CCl4 - Covalent compound |
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They are hard crystalline solids consisting of ions. |
These are gases or liquids or soft solids. |
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They have high melting and boiling points. |
They have low melting and boiling points. |
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They conduct electricity in the fused or aqueous state. |
They do not conduct electricity in the solid, molten or aqueous state. |
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These are soluble in inorganic solvents but insoluble in organic solvents. |
These are insoluble in water but dissolve in organic solvents. |
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संबंधित प्रश्न
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene?
Give one example of a molecule containing a single covalent bond.
Why does carbon form compounds mainly by covalent bonding?
Why is graphite used for making dry cell electrodes but diamond is not?
An element E exists in three allotropic forms A, B and C. In allotrope A, the atoms of element E are joined to form spherical molecules. In allotrope B, each atom of element E is surrounded by three other E atoms to form a sheet like structure. In allotrope C, each atom of element E is surrounded by four other E atoms to form a rigid structure.
(a) Name the element E.
(b) What is allotrope A.
(c) What is allotrope B?
(d) What is allotrope C?
(e) Which allotrope is used in making jewellery?
(f) Which allotrope is used in making anode of a dry cell?
Explain the following term with example.
Homopolymer
Explain the following:
Covalent compounds are generally gases or liquids or soft solids.
Write an Explanation.
Alkane
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
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Which of the following statements are correct for carbon compounds?
- Most carbon compounds are good conductors of electricity.
- Most carbon compounds are poor conductors of electricity.
- Force of attraction between molecules of carbon compounds is not very strong.
- Force of attraction between molecules of carbon compounds is very strong.
