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प्रश्न
Define a covalent bond.
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उत्तर
The chemical bond formed due to mutual sharing of electrons between the given pairs of atoms of non-metallic elements.
संबंधित प्रश्न
What type of bond exists in CCl4?
What type of chemical bonds are formed by carbon? Why?
Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity?
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?
What is the difference between ionic compounds and covalent compounds?
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 |
Give the appropriate term defined by the statement given below:
The covalent bond in which the electrons are shared equally between the combining atoms.
The particles present in strong electrolytes are
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
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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