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NEET-XI-Chemistry

05: Organic Chemistry: Some Basic Principles and Techniques

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  • #
    Chapter 5 - Organic Chemistry : Some Basic Principles and Techniques
  • Qstn #1
    What are hybridisation states of each carbon atom in the following compounds?
  • Qstn #1-i
    CH2=C=O,
    Ans :

    C-1 is sp2 hybridised.

    C-2 is sp hybridised.
  • Qstn #1-ii
    CH3CH=CH2,
    Ans :

    C-1 is sp3 hybridised.

    C-2 is sp2 hybridised.

    C-3 is sp2 hybridised.
  • Qstn #1-iii
    (CH3)2CO,
    Ans :

    C-1 and C-3 are sp3 hybridised.

    C-2 is sp2 hybridised.
  • Qstn #1-iv
    CH2=CHCN,
    Ans :

    C-1 is sp2 hybridised.

    C-2 is sp2 hybridised.

    C-3 is sp hybridised.
  • Ans : C6H6

    All the 6 carbon atoms in benzene are sp2 hybridised.
  • Qstn #2
    Indicate the σ and ``\pi`` bonds in the following molecules:
  • Ans : C6H6



    There are six C-C sigma () bonds, six C-H sigma () bonds, and three C=C pi () resonating bonds in the given compound.
  • Ans : C6H12



    There are six C-C sigma () bonds and twelve C-H sigma () bonds in the given compound.
  • Ans : CH2Cl2



    There two C-H sigma () bonds and two C-Cl sigma () bonds in the given compound.
  • Qstn #2-iv
    CH2 = C = CH2,
    Ans : CH2 = C = CH2



    There are two C-C sigma () bonds, four C-H sigma () bonds, and two C=C pi () bonds in the given compound.
  • Qstn #2-v
    CH3NO2,
    Ans : CH3NO2



    There are three C-H sigma () bonds, one C-N sigma () bond, one N-O sigma () bond, and one N=O pi () bond in the given compound.
  • Qstn #2-vi
    HCONHCH3
    Ans : HCONHCH3



    There are two C-N sigma () bonds, four C-H sigma () bonds, one N-H sigma bond, and one C=O pi () bond in the given compound.
  • Qstn #3
    Write bond line formulas for:
    Ans : The bond line formulae of the given compounds are:
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