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Define a Covalent Bond. - Chemistry

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प्रश्न

Define a covalent bond.

व्याख्या

उत्तर

The chemical bond formed between two combining atoms by mutual sharing of one or more pairs of electrons is called a covalent bond.

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पाठ 4: Atomic Structure and Chemical Bonding - Exercise 4 (E) [पृष्ठ ७६]

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सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 4 Atomic Structure and Chemical Bonding
Exercise 4 (E) | Q 1.1 | पृष्ठ ७६

संबंधित प्रश्‍न

What are covalent compounds?


Ethane, with the molecular formula C2H6 has ______.


What would be the electron-dot structure of carbon dioxide which has the formula CO2?


What type of bonds are present in CO2 molecule? Draw their electron-dot structures.


 Why is diamond used for making cutting tools (like glass cutters) but graphite is not?


State any two uses of graphite.


Give two example in following case:

Solid covalent compounds


Explain, giving reason, why carbon neither forms C4+ cations nor C4− anions, but forms covalent compounds which are bad conductors of electricity and have low melting point and low boiling point. 

Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol


Explain the Structural isomerism term with example.


Explain the following term with example.

Homopolymer


(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
The type of bonding in X will be



Explain why Carbon tetrachloride does not dissolve in water.


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 [ H=1, C=6, Mg=12, Cl=17].


Number of valence electrons in a carbon atom is _______.


Write an Explanation.

Alkane


Write a short note.

Aromatic hydrocarbons


Which of the following compound(s) possesses a high melting point?


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