Chemistry One-Liners for various competitive examinations

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Chemistry One-Liners for various competitive examinations

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Here are some important Chemistry one-liners for students competing for various exams

Watch some of the important Chemistry Bits below.


1- The force of attraction that keeps the various atoms of a molecule together is called Chemical bond.


2-Bond formed by the transfer(loss or gain) of electrons is called the electrovalent bond.


3- A bond formed by the sharing of electron pairs between atoms is called the covalent bond.


4-Three major types of Chemical bonds are there. They are Ionic, Covalent and Co-ordinate covalent(dative).


5-Ionic bond was proposed by Kossel.


6-Ionic bond is formed by the transfer of electrons between atoms.


7-The bond formed between highly electropositive and highly electronegative elements is an ionic bond.


8- The electrostatic force of attraction existing between oppositely charged ions is called the ionic bond.


9- The ionic bond is always formed between a metal and a non-metal.


10-The formation of a covalent bond was initially explained by Lewis.


11- The number of electron pairs shared by an atom with others is called its covalency.


12-The term Covalency was introduced by Langmuir.


13- When two electron pairs are shared between two atoms, the bond formed is called a double covalent bond.


14- If three electron pairs are shared between two atoms, the bond formed is called a triple covalent bond.


15- A nonpolar covalent bond is formed in between similar atoms.


16- A polar covalent bond is formed in between dissimilar atoms.


17- Majority of covalent compounds are gases or volatile liquids or solids of low melting points.


18- Generally covalent bond is weaker than an ionic bond.


19- Covalent compounds are soluble in non-polar solvents like benzene, Chloroform etc and insoluble in polar solvents.


20- Covalent compounds do not conduct electricity.


21- Co-ordinate Covalent bond was proposed by Sidgewick.


22-The atom that provides an electron pair is called donor and which receives it is called acceptor. Hence the bond is also called donor-acceptor bond.


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