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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
Write structural formula of Methane.
Give reason why carbon compounds are generally poor conductors of electricity.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
Fill in the blanks in the following sentence:
In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.
Compare the properties of ionic compounds and covalent compounds.
What is buckminsterfullerene?
One of the following contains a double bond as well as single bonds. This is:
(a) CO2
(b) O2
(c) C2H4
(d) C2H2
Complete the following:
In case of non-polar covalent bond, the covalent bond is formed in the ______ of atoms and shared electrons are ______ distributed. (corner, middle, equally, unequally)
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
Explain the following briefly:
Sodium chloride dissolves in water but carbon tetra chloride is insoluble in water.
Explain the following briefly.
Pure water does not conduct electricity, but on adding sodium chloride to it, it starts conducting electricity.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
Draw an electron dot diagram to show the formation of the following compound.
Methane
Electrons are getting added to an element Y:
Is Y getting oxidised or reduced?
Electrons are getting added to an element Y:
which electrode will Y migrate to during the process of electrolysis?
Write an Explanation.
Alkyne
Write scientific reason.
Benzene compounds are called aromatic compounds.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \phantom{..}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C- C- H}\\ \phantom{.}|\phantom{....}|\phantom{....}|\\ \ce{H - C - H}\\ |\\\ce{H}\end{array}\] |
Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
In covalent compounds, the bond is formed due to ______ of electrons.
