E and Z Nomenclature of Geometric Isomers MCQ

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• In glyceraldehydes, the complete sequence of priority is _________
  ক

  –OH > -CH2OH > -CHO > -H

  খ

  –H > -CH2OH > -CHO > -OH

  গ

  –H > –OH > -CH2OH > -CHO

  ঘ

  –OH > CHO > -CH2OH > -H
• The cis-trans nomenclature is not applicable when _________
  ক

  The different groups attached to the carbon atom of double bond are same

  খ

  Atleast one of the group attached to each carbon atom is same

  গ

  The different groups attached to the carbon atom of double bond are not same

  ঘ

  The cis-trans nomenclature is applicable for all compounds
• Select the incorrect option from the following.
  ক

  Fischer projections are two dimensional representations of three dimensional molecules

  খ

  A molecule is achiral if it cannot be superimposed on its mirror reflection

  গ

  E and Z notations are based on Cahn, Ingold and Prelog priority system

  ঘ

  Chiral molecules which are non-superimposable mirror images of each other are enantiomers
• Which of the following compounds have Z-configuration?
  ক

  CH3CH3CH2>C=CHCH3

  খ

  HPh>C=CCOOHPh

  গ

  H2NCl>C=CCOOHBr

  ঘ

  CH3Ph>C=CCH2CH3Br
• In which type of projection we can get staggered and eclipsed conformations?
  ক

  Newman Projection

  খ

  Sawhorse Projection

  গ

  Fischer Projection

  ঘ

  Wedge Projection
• Choose the correct option from the following.
  ক

  A group gets priority if its atomic number is high

  খ

  When atoms attached to a double bond have same atomic number, the first atoms are considered

  গ

  A group gets priority if its atomic number is low

  ঘ

  Lone pair gets more priority and is ranked above hydrogen
• Which type of compounds cannot exhibit geometrical isomerism?
  ক

  Singly Bonded

  খ

  Doubly Bonded

  গ

  Triply Bonded

  ঘ

  Cyclic Compounds
• What are diastereomers?
  ক

  Molecules with non-superimposable mirror images

  খ

  Molecules with superimposable mirror images

  গ

  Molecules which do not have non-superimposable mirror images

  ঘ

  None of the mentioned
• What are Stereoisomers?
  ক

  Isomers having a same molecular formula and same configuration

  খ

  Isomers having a same molecular formula but different configuration

  গ

  Isomers having a different molecular formula but the same configuration

  ঘ

  Isomers having a different molecular formula and different configuration