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प्रश्न
State the reason to explain why covalent compounds "have low melting and boiling points."
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उत्तर
Covalent compounds are formed by covalent bonds and it has been found that the intermolecular forces of attraction in covalent compounds are weak. Thus, their melting and boiling points are quite low.
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संबंधित प्रश्न
Give one example of a molecule containing a single covalent bond.
Fill in the blank in the following sentence:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
Name one covalent compound containing chlorine.
The number of covalent bonds in pentane (molecular formula C5H12) is:
Which of the following cannot exhibit isomerism?
(a) C4H10
(b) C5H12
(c) C3H8
(d) C6H14
Match the pairs.
| Group 'A' | Group 'B' |
| a. C2H6 | 1. Unsaturated hydrocarbon |
| b. C2H2 | 2. Molecular formula of an alcohol |
| c. CH4O | 3. Saturated hydrocarbon |
| d. C3H6 | 4. Triple bond |
Explain the following term with example.
Homopolymer
State the type of bond formed when the combining atom has zero E.N. difference.
Define a covalent bond.
The bond which is formed by the mutual sharing of electrons is called ______ bond.
