Biochemistry Quiz

34 Questions  I  By Moon_games
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Chemistry Quizzes & Trivia
A quiz to study for my bicohemistry test on chem basics

  
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  • 1. 
    What charge do neutrons have?
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral

    • D. 

      All of the above

    • E. 

      None of the above


  • 2. 
    What charge do electrons have?
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral


  • 3. 
    What charge do protons have
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral


  • 4. 
    What four elements make up 99% of living organisms?
    • A. 

      Carbon dioxide, oxygen, sulfur, phosphorus

    • B. 

      Carbon, Nitrogen, Sodium, Oxygen

    • C. 

      Hydrogen, Carbon, Oxygen, Nitrogen

    • D. 

      Carbon, Hydrogen, Oxygen, Helium


  • 5. 
    What is an isotope?Hint: same chemical formula, different structural formulae
    • A. 

      Same number of neutrons, different number of protons and electrons

    • B. 

      Same number of electrons and neutrons, different number of protons

    • C. 

      Same number of electrons, different number of protons and neutrons

    • D. 

      Same number of protons and electrons, different number of neutrons


  • 6. 
    How do you know how many covalent bonds a molecule can form?
    • A. 

      Look at number at the top of your periodic table columns

    • B. 

      # of valence electrons

    • C. 

      # of neutrons

    • D. 

      # of protons


  • 7. 
    Which bond is the strongest?
    • A. 

      Covalent

    • B. 

      Ionic

    • C. 

      Hydrogen

    • D. 

      Van Der Waals Forces


  • 8. 
    Polarity is the _____ distribution of ____ either within a ______ or a ______

  • 9. 
    Electronegativity of?
    • A. 

      An atoms ability to form hydrogen bonds

    • B. 

      An atoms ability to be free

    • C. 

      An atoms ability to attract electrons towards itself

    • D. 

      An atoms ability to form attract organic molecules


  • 10. 
    An ion is
    • A. 

      An atom or molecule in which the total number of electrons is not equal to the total number of neutrons, making it either positively or negatively charged

    • B. 

      An atoms or molecule in which the total number of anions are not equal to the total number of cations making it either positively or negatively charged

    • C. 

      An atom or molecule in which the total number of electrons is not equal to the total number of protons, making it either positively or negatively charged

    • D. 

      An atom or molecule in which the total mass number is not equal to the protons, making it either positively or negatively charged


  • 11. 
    Ionic bonding is the mutual attraction of _________ charged ions involving a _______ and a ________ where the _____ donates 1 or more electrons to the _______ making the ______ positively charged and the _______, negatively charged

  • 12. 
    Difference between a molecule and a compound is?
    • A. 

      A molecule is two or more of different elements bonded together, whereas compounds are two or more of the same elements bonded together

    • B. 

      A molecule is the same element, a compound is two separate different elements

    • C. 

      A molecule is two or more of the same element bonded together, where as a compound is two or more different molecules


  • 13. 
    A bond is non-polar covalent when the electronegativity is
    • A. 

      1

    • B. 

      7

    • C. 

      1.7

    • D. 

      4.2

    • E. 

      0


  • 14. 
    A bond is ionic when the electronegativity is atleast
    • A. 

      1.5

    • B. 

      0.5

    • C. 

      1.7

    • D. 

      1

    • E. 

      0


  • 15. 
    A covalent bond is when atoms bond by _____ electrons, if the electrons are shared _____ the bond is polar, if the electrons are shared _____ the bond is non-polar

  • 16. 
    Polar covalent bonding is when electrons are shared and electronegativity is
    • A. 

      Greater than 1.7 and less than 4.2

    • B. 

      Less than 0

    • C. 

      Equal to 0

    • D. 

      Greater than 0 and less than 1.7

    • E. 

      Greater than 0 and less than 4.2


  • 17. 
    What types of molecules cannot form hydrogen bonds with water?
    • A. 

      Polar

    • B. 

      Non-polar

    • C. 

      Molecules that were covalently bonded

    • D. 

      Molecules that have an ionic bond

    • E. 

      Molecules that do not already have a hydrogen bond


  • 18. 
    Ionic bonding is an attempt to
    • A. 

      Allow metals and metals to interact

    • B. 

      Form stable # of valence electrons

    • C. 

      Get as many neutrons and protons as possible

    • D. 

      Have 8 protons


  • 19. 
    Van der waals forces are
    • A. 

      Strong bonds

    • B. 

      Weak bonds

    • C. 

      Medium bonds


  • 20. 
    Dipole-dipole forces hold ______ molecules to one another. As _____ molecules, have a partially _______ side and a partially _____ side, one polar molecules _____ side is going to attract to the other polar molecules _____ end. Dipole-dipole is stronger than ________

  • 21. 
    London forces are
    • A. 

      Very weak, non-polar molecules instantaneously becoming slightly polar therefore the second molecule its bonding too is distorted by the uneven distribution of the first molecule (as electrons repel each other) and therefore both molecules will become slightly polar and attract each other

    • B. 

      Strong, in polar molecules, opposite ends attract

    • C. 

      Normal,

    • D. 

      Stronger than dipole-dipole, in non-polar molecules, instantaneously a non-polar molecule becomes slightly polar and attaches to a very polar molecule


  • 22. 
    An example of hydrogen bonding between two water molecules is when the ________ oxygen part of a water molecule  ________ bonds to the _______ hydrogen part of a water molecule

  • 23. 
    Which of the following is not a property of water
    • A. 

      Waters ability to absorb a lot of heat

    • B. 

      Solid water is less dense than liquid water

    • C. 

      Water clings - it forms hydrogen bonds with one another and with other polar molecules

    • D. 

      Oxygen can form hydrogen bonds with water


  • 24. 
    When talking about acids and bases, strong describe an acid or base means that it will ionize _______ and weak means it will ionize ________

  • 25. 
    A buffer solution would comprise of
    • A. 

      A strong acid only

    • B. 

      A weak acid and a weak base

    • C. 

      A strong acid and a strong base

    • D. 

      An alchohol and a base

    • E. 

      A strong base only


  • 26. 
    Compare and contrast a buffering agent and a buffering solution

  • 27. 
    At pH 7 a solution is ______

  • 28. 
    A solution with a pH less than 7 is _______

  • 29. 
    A solution with a pH more than 7 is ________

  • 30. 
    In a neutralization reaction an ____ is bonded to a ____. _____ and ____ are always result in the reaction.

  • 31. 
    When acids are in water they ___ ___ a ___ ion and when bases are in water they ___ a ____ ion

  • 32. 
    What is the difference between intramolecular and intermolecular bonding?

  • 33. 
    Pure water is considered a neutral solution because it contains equal numbers of _____ and ____ ions

  • 34. 
    Which 3 functional groups have a double bond
    • A. 

      Hydroxyl, carboxyl, amino,

    • B. 

      Carbonyl, carboxyl, phosphate

    • C. 

      Amino, phosphate, carbonyl

    • D. 

      Carboxyl, hydroxyl, phosphate

    • E. 

      Hydroxyl, amino, phosphate


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