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प्रश्न
Which of the following is a common characteristic of a covalent compound?
पर्याय
High melting point
Consists of molecules
Always soluble in water
Conducts electricity when it is in the molten state
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उत्तर
Consists of molecules
Explanation:
- A covalent compound is formed by sharing of electrons between the atoms of the same element of a different element.
- Thus, the joining of different atoms forms a molecule. e.g.- N2, H2, H2O etc.
- That means the constituent particles of covalent compounds are molecules.
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संबंधित प्रश्न
Explain the nature of the covalent bond using the bond formation in CH3Cl.
State the type of bonding in the following molecule.
Water
Why does carbon form compounds mainly by covalent bonding?
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. În 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 briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride
[Mg = 12, Cl = 17]
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If the compound formed between A and B is melted and an electric current is passed through the molten compound, the element A will be obtained at the ______ and B at the ______ of the electrolytic cell.
In covalent bond formation, the sharing of ______ electrons takes place in their outermost shell.
"Carbon prefers to share its valence electrons with other atoms of carbon or with atoms of other elements rather than gaining or losing the valence electrons in order to attain noble gas configuration." Give reasons to justify this statement.
In covalent compounds, the bond is formed due to ______ of electrons.
