Bond Cleavage(General Knowledge > General Science ) Questions and Answers

Question 1. When hair is dry, protein molecules in the hair structure form hydrogen bonds with
  1.    other protein molecules in the same hair structure
  2.    water molecules, H2O
  3.    other protein molecules from another hair structure
  4.    water molecules, H2O which also forms hydrogen bonds with protein molecules from another hair structure
Explanation:-
Answer: Option A. -> other protein molecules in the same hair structure
Question 2. Why can compounds that can form hydrogen bonds have higher boiling points than compounds that cannot form hydrogen bonds?
  1.    Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces
  2.    Compounds that can form hydrogen bonds need to overcome strong hydrogen bonds
  3.    Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces and strong hydrogen bonds
  4.    None of these
Explanation:-
Answer: Option C. -> Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces and strong hydrogen bonds
Question 3. Which of these compounds will have the highest boiling point?
  1.    Br2
  2.    NaCl
  3.    C3H7OH
  4.    Cl2
Explanation:-
Answer: Option C. -> C3H7OH
Question 4. Coordinates bonds are also called
  1.    ionic bonds
  2.    covalent bonds
  3.    dative bonds
  4.    metallic bonds
Explanation:-
Answer: Option C. -> dative bonds
Question 5. What is the meaning of Dative Bond?
  1.    a covalent bond between two atoms where one of the atoms provides both electrons that form the bond.
  2.    a covalent bond between two atoms where both of the atoms provides both electrons that form the bond.
  3.    same with an ionic bond
  4.    not exist
Explanation:-
Answer: Option A. -> a covalent bond between two atoms where one of the atoms provides both electrons that form the bond.
Question 6. Predict the bond that will form between S and O
  1.    Ionic
  2.    Covalent
Explanation:-
Answer: Option B. -> Covalent
Question 7. Which type of chemical bond is formed in Aluminum wire?
  1.    Metallic
  2.    Ionic
  3.    Covalent
  4.    Dative
Explanation:-
Answer: Option A. -> Metallic
Question 8. What is the basis of hydrogen bond?
  1.    Attraction forces between hydrogen atom bonded with another hydrogen atom
  2.    Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N)
  3.    Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule
  4.    Attraction forces between hydrogen atom with another hydrogen atom of another molecule
Explanation:-
Answer: Option C. -> Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule
Question 9. How can dative bond form between ammonia, NH3 and hydrogen ion, H+ to form ammonium ion, NH4+?
  1.    Ammonia, NH3 and hydrogen ion, H+ will each share one electron
  2.    The pair of electrons not involved in covalent bond in ammonia, NH3 will be shared with hydrogen ion, H+
  3.    Ammonia, NH3 and hydrogen ion, H+ will each share one electron
  4.    All of above
Explanation:-
Answer: Option B. -> The pair of electrons not involved in covalent bond in ammonia, NH3 will be shared with hydrogen ion, H+
Question 10. How can dative bond form in hydroxonium ion H3O+?
  1.    The pair of electrons not involved in covalent bond in water molecule, H2O will be shared with hydrogen ion H+
  2.    Water molecule, H2O and hydrogen ion, H+ will each share one electron
  3.    Water molecule, H2O and hydrogen ion, H+ will each share two electrons
  4.    None of these
Explanation:-
Answer: Option A. -> The pair of electrons not involved in covalent bond in water molecule, H2O will be shared with hydrogen ion H+
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