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Chemistry ( Chapter-1, Fundamental Concepts of Chemistry, 11th Class )

Definition It is the simplest formula of a chemical compound which represents the element present of the compound and also represent the simplest ratio between the elements of the compound. Examples The empirical formula of benzene is "CH". It indicates that the benzene molecule is composed of two elements carbon and hydrogen and the ratio between these two elements is 1:1. The empirical formula of glucose is "CH2O". This formula represents that glucose molecule is composed of three elements carbon, hydrogen and oxygen. The ratio between carbon and oxygen is equal but hydrogen is double.

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  • Thank you very much. These notes help me a lot. Good Bye. Regards Zeshan Ali ?
    Zeshan Ali on 22-02-2012 at 06:13:49 commented
  • plzzzzz show me important short questions of chemistry 11th clas......we need that because next month is our papers....on need of 1st year students post that...please
    bebo0 on 15-04-2012 at 11:52:48 commented
    SULTAN5066 on 21-05-2012 at 08:38:52 commented
  • this website really helped me in finding and downloading the notes for the class 11th thankssssssssssssssssssssss
    kamran on 17-09-2012 at 07:55:24 commented
  • thanks alot i really need it
    Qasim on 04-11-2012 at 10:01:59 commented
  • thanks a lot
    naeem akram on 05-03-2013 at 08:11:36 commented
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    dream8 on 06-01-2015 at 04:54:56 commented

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