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CHEMICAL BONDING MOLECULAR STRUCTURE MCQs

Total Questions : 19 | Page 2 of 2 pages
Question 11. The polarity of a bond between two elements can be best determined by
  1.    The difference in electronegativity between the elements
  2.    The difference in first ionization energy between the elements
  3.    The number of electrons shared in the bond
  4.    The difference in atomic radius between the elements
 Discuss Question
Answer: Option A. -> The difference in electronegativity between the elements
Question 12. Which element will have 5 electrons in its Lewis dot symbol?
  1.    Bromine
  2.    Nitrogen
  3.    Neon
  4.    Boron
 Discuss Question
Answer: Option B. -> Nitrogen
Question 13. What is the electron configuration of beryllium?
  1.    2.2
  2.    2.4
  3.    4
  4.    6
 Discuss Question
Answer: Option A. -> 2.2
Question 14. What is the basis of a metallic bond?
  1.    the attraction of neutral metal atoms.
  2.    the attraction between protons and neutrons.
  3.    the attraction between positive metal ions and interlocking electrons.
  4.    the attraction between positive metal ions and sea of delocalised electrons.
 Discuss Question
Answer: Option D. -> the attraction between positive metal ions and sea of delocalised electrons.
Question 15. Why do atoms bond?
  1.    They typically don't bond
  2.    To add or take away energy levels
  3.    To have a full valence shell.
  4.    To have a full inner shell
 Discuss Question
Answer: Option C. -> To have a full valence shell.
Question 16. Do ionic bonds share or transfer electrons?
  1.    Share
  2.    Transport
 Discuss Question
Answer: Option B. -> Transport
Question 17. Chemical bonds form when atoms
  1.    combined nuclei
  2.    give up neutrons
  3.    gain protons
  4.    share or transfer electrons
 Discuss Question
Answer: Option D. -> share or transfer electrons
Question 18. In which of the following species is the underlined carbon having Sp3 hybridisation?
  1.    CH3COOH
  2.    CH3CH2OH
  3.    CH3COCH3
  4.    CH2=CHCH3
 Discuss Question
Answer: Option B. -> CH3CH2OH
Question 19. What is the number of valence electrons for Oxygen?
  1.    8
  2.    6
  3.    2
  4.    1
 Discuss Question
Answer: Option B. -> 6

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