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HYDROGEN BONDING MCQs

Total Questions : 22 | Page 2 of 3 pages
Question 11. What is considered a Hydrogen Bond?
  1.    H-Pb
  2.    H-Fe
  3.    H-O
  4.    All of the above
 Discuss Question
Answer: Option C. -> H-O
Question 12. Which is the second strongest intermolecular force, after hydrogen bonding?
  1.    dipole-dipole attraction
  2.    Wan Der Waals forces
 Discuss Question
Answer: Option A. -> dipole-dipole attraction
Question 13. Which noble gas has the highest boiling point?
  1.    Xe
  2.    Kr
  3.    Ar
  4.    He
 Discuss Question
Answer: Option A. -> Xe
Question 14. Which of the following geometries could be nonpolar?
  1.    bent
  2.    tetrahedral
  3.    trigonal pyrimidal
  4.    none of the above
 Discuss Question
Answer: Option B. -> tetrahedral
Question 15. Which formula represents a nonpolar molecule?
  1.    HBr
  2.    H2S
  3.    CBr4
  4.    PCl3
 Discuss Question
Answer: Option C. -> CBr4
Question 16. Which of the following molecules, based on the elements present, would be most polar?
  1.    HF
  2.    H2
  3.    HCl
  4.    HBr
 Discuss Question
Answer: Option A. -> HF
Question 17. Which is the most electronegative atom?
  1.    Helium
  2.    Fluorine
  3.    Chlorine
  4.    Iodine
 Discuss Question
Answer: Option B. -> Fluorine
Question 18. What explains the very high melting and boiling point of water
  1.    Strong dipole-dipole bonds between water molecules
  2.    Strong hydrogen bonds between water molecules
  3.    Dispersion forces which are present in all molecules
  4.    Asymmetrical shape of the polar bonds.
 Discuss Question
Answer: Option B. -> Strong hydrogen bonds between water molecules
Question 19. Which substance would have the weakest intermolecular forces of attraction?
  1.    CH4
  2.    NaCl
  3.    H2O
  4.    MgF2
 Discuss Question
Answer: Option A. -> CH4
Question 20. All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces
  1.    I2
  2.    NH3
  3.    OCl2
  4.    SH2
 Discuss Question
Answer: Option A. -> I2

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