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VALENCE BOND MCQs

Total Questions : 20 | Page 1 of 2 pages
Question 1. A π (pi) bond is the result of the
  1.    overlap of an s orbital and a p orbital
  2.    overlap of two p orbitals along their axes
  3.    sidewise overlap of two parallel p orbitals
  4.    sidewise overlap of two s orbitals
 Discuss Question
Answer: Option C. -> sidewise overlap of two parallel p orbitals
Question 2. Greater the overlap of the orbitals, _________________________
  1.    lesser the bond strength
  2.    greater the bond strength
  3.    bond strength remains the same
  4.    no bond formation
 Discuss Question
Answer: Option B. -> greater the bond strength
Question 3. Which is the stronger bond?
  1.     \sigma\ Bondσ Bond 
  2.     π Bond\pi\ Bondπ Bond  
 Discuss Question
Answer: Option A. ->  \sigma\ Bondσ Bond 
Question 4. The new attractive force(s) (ie
  1.    NB - EA
  2.    NA - NB
  3.    EA - EB
  4.    Both A & B
 Discuss Question
Answer: Option D. -> Both A & B
Question 5. Choose all possible overlaps
  1.    positive overlap
  2.    zero overlap
  3.    negative overlap
  4.    All of above
 Discuss Question
Answer: Option D. -> All of above
Question 6. Atoms that are sp2 hybridized form ____ pi bond(s)
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option B. -> 1
Question 7. The new repulsive force(s) (ie
  1.    NA - NB
  2.    NB - EB
  3.    NA - EB
  4.    Both A & B
 Discuss Question
Answer: Option D. -> Both A & B
Question 8. In a polar covalent bond, electrons are shared ___________
  1.    equally
  2.    unequally
  3.    between non-metals with similar electronegativities
  4.    between a metal and a non-metal
 Discuss Question
Answer: Option B. -> unequally
Question 9. The electronegativity difference in the bonds of CH4 (methane) is:
  1.    0.4
  2.    5.9
  3.    -0.4
  4.    1.7
 Discuss Question
Answer: Option A. -> 0.4
Question 10. Electronegativity is a measurement of the ability of a nucleus to
  1.    attract bonding electrons
  2.    attract other nuclei
  3.    attract elenece in the non-valence energy levels
  4.    All of above
 Discuss Question
Answer: Option A. -> attract bonding electrons

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