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प्रश्न
Define a covalent bond.
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उत्तर
The chemical bond formed between two combining atoms by mutual sharing of one or more pairs of electrons is called a covalent bond.
संबंधित प्रश्न
State the reason why carbon can neither form C4+ cations nor C4− anions but forms covalent compounds.
Ethane, with the molecular formula C2H6 has ______.
The number of single covalent bonds in C2H2 molecule are ______.
What type of chemical bond is present in the chlorine molecule? Explain your answer.
Friedrich Wohler converted an inorganic compound into an organic compound in the laboratory.
- Give the name and formula of inorganic compound.
- Write the name and formula of organic compound formed.
will CCl4 conduct electricity or not?
give reason for your choice.
Draw the electron-dot structure of the following compound and state the type of bonding in the given case:
HCl
Explain why, diamond can be used in rock drilling equipment but graphite cannot.
The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
The number of covalent bonds in pentane (molecular formula C5H12) is ______.
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol
Give examples for the following:
Two liquid non polar compounds.
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride
[Mg = 12, Cl = 17]
Draw the electron dot diagram and structure of magnesium chloride.
Define the functional group and complete the following table.
| S.I. No. | Functional Group | Compound | Formula |
| (1) | ______________ | _______________ |
C2H5OH |
| (2) | _______________ | _______________ | CH3CHO |
Write a short note.
Characteristics of carbon
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
