NEET Chemistry - New - Organic Chemistry Some Basic Principles and Techniques

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Question - 1

Which of the following organic compounds has same hybridization as its combustion (CO2) product?

  • A Ethane
  • B Ethyne
  • C Ethene
  • D Ethanol

Question - 2

The radical  is aromatic because it has :

  • A 6p orbitals and 6 unpaired electrons
  • B 7p orbitals and 6 unpaired electrons
  • C 7p orbitals and 7 unpaired electrons
  • D 6p orbitals and 7 unpaired electrons

Question - 3

Which nomenclature is not according to IUPAC system?

  • A Br- CH2 - CH = CH2 1-bromo prop 2-ene
  • B
  • C
  • D

Question - 4

The correct order of increasing bond length of CㅡH, CㅡO, CㅡC and C = C is:

  • A CㅡC < C = C < CㅡO < CㅡH
  • B CㅡO < CㅡH < CㅡC < C = C
  • C CㅡH < CㅡO < CㅡC < C = C
  • D CㅡH < C = C < CㅡO < CㅡC

Question - 5

The correct IUPAC name of the compound

  • A 3-ethyl 4-ethenylheptane
  • B 3-ethyl 4-propylhex-5-ene
  • C 3-(l-ethyl propyl) hex l-ene
  • D 4-ethyl -3-propyl hex -1-ene

Question - 6

The IUPAC name of the compound having the formula CH≡CㅡCH=CH2 is:

  • A 3-butene -1-yne
  • B 1-butyn 3-ene
  • C but 1-yne -3-ene
  • D 1-butene-3-yne

Question - 7

The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon,

  • A sp, sp3, sp2 and sp3
  • B sp3, sp2, sp2 and sp
  • C sp, sp2, sp2 and sp3
  • D sp, sp2, sp3 and sp2

Question - 8

In the hydrocarbon

The state of hybridization of carbons 1, 3 and 5 are in the following sequence :

  • A sp2, sp, sp3
  • B sp, sp3, sp2
  • C sp, sp2, sp3
  • D sp3, sp2, sp

Question - 9

The correct order regarding the electronegativity of hybrid orbitals of carbon is:

  • A sp > sp2 < sp3
  • B sp > sp2 > sp3
  • C sp < sp2 > sp3
  • D sp < sp2 < sp3

Question - 10

The IUPAC name of 

  • A 3, 4 dimethylpentanoyl chloride
  • B 1-chloro-1-oxo 2, 3 dimethyl pentane
  • C 2-ethyl-3-rnethyl butanoyl chloride
  • D 2, 3 dimethyl pentanoyl chloride