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ICSE Class 8 Answered

CAN YOU DESCRIBE ABOUT RADICALS
Asked by JINSONJOESPH2000 | 26 Mar, 2019, 03:11: PM
answered-by-expert Expert Answer

Radical

    Radical is an atom or a group of atoms of same or different elements which behaves like a single atom with a positive or a negative charge on it. 

    Radicals have their own combining power based on which they form chemical formulae. 

    A radical can be either a basic radical having positive charge i.e, cation or a radical having negative charge i.e, an anion.

 Example: 

NH subscript 4 superscript plus comma space Na to the power of plus comma space NO subscript 3 superscript minus space or space SO subscript 4 superscript 2 minus end superscript

 

Compounds

Acidic

radical

Basic

radical

Chemical

formulae

 
 Barium sulphate

 

     SO subscript 4 superscript 2 minus end superscript 

 

          Ba2+

 

        BaSO4

 
Bismuth nitrate

 

     space NO subscript 3 superscript minus

     

         Bi3+

 

       Bi(NO3)3

 
Calcium bromide

     

        Br-

 

 

         Ca2+

 

         CaBr2

 
Ferrous sulphide

 

       S2-

 

 

        Fe2+

 

           FeS 

 

 

Answered by Ramandeep | 26 Mar, 2019, 03:58: PM
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