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प्रश्न
Fill in the blank in the following sentence:
Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
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उत्तर
Two atoms of the same element combine to form a molecule. The bond between them is known as a covalent bond.
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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 double covalent bond
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
Draw the electron-dot structure of N2 and state the type of bonding.
A saturated hydrocarbon has fifty hydrogen atom in its molecule. The number of carbon atoms in its molecule will be
(a) twenty five
(b) twenty four
(c) twenty six
(d) twenty seven
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
What is the difference between ionic compounds and polar 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 |
Molecular formula of Propane is C3H8 , write the structural formula of propane.
Choose and write the correct option.
Which type of carbon-carbon bonds are present in Vanaspati ghee?
The carbon compound is used in daily life is ______.
Draw an electron dot diagram to show the formation of the following compound.
Methane
What are the term defined below?
A bond formed by share pair of electrons, each bonding atom contributing one electron to the pair.
Explain the following:
Water is a polar covalent molecule.
What is the difference between a polar covalent compound and a non-polar covalent compound?
Write scientific reason.
Carbon has the property of forming many compounds.
Explain covalent bond with example.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Give an example for each of the following statement.
Formation of coordinate covalent bond between NH3 ➝ BF3 molecules
Show the covalent bond formation in nitrogen molecule.
