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प्रश्न
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
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उत्तर
(b) Oxygen
In an oxygen molecule, each oxygen atom shares its 2 electrons to complete its octet and forms double covalent bond between them.
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संबंधित प्रश्न
Why covalent compounds are different from ionic compounds?
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
How does graphite act as a lubricant?
What type of bonds are present in hydrogen chloride and oxygen?
Give one example of a molecule containing a triple covalent bond.
How buckminsterfullerene is it related to diamond and graphite?
What type of bonding would you expect between Hydrogen and Chlorine?
Write two points of difference in the structures of diamond and graphite.
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is:
(a) fifty
(b) sixty
(c) seventy
(d) ninety
Methane molecule is non-polar molecule. Explain.
State the type of bonding in the following molecule.
Hydroxyl ion
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
Name a neutral covalent molecule which contains one lone pair of electrons.
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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Discuss in brief about the properties of coordinate covalent compounds.
The I.U.P.A.C name of CH3CH2CH = CH2 is?
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.
Assertion (A): Melting point and boiling point of ethanol are lower than that of sodium chloride.
Reason (R): The forces of attraction between the molecules of ionic compounds are very strong.
It is observed that covalent compounds are had conductors of electricity. Give reason.
Carbon can neither form C4- cation nor C4 anion. Why?
