Question: QUESTION 1 When drawing a Lewis structure for a covalent compound, you need to know the total number of valence electrons for the compound….

Question:QUESTION 1

  1. When drawing a Lewis structure for a covalent compound, you need to know the total number of valence electrons for the compound. How many valence electrons are there for Cl2CO?
  2. A.17
  3. B.24
  4. C.28
  5. D.32

QUESTION 2

  1. What is the molecular geometry of PBr3?
  2. A.trigonal pyramidal
  3. B.trigonal planar
  4. C.linear
  5. D.tetrahedral

QUESTION 3

  1. How many dots would be shown for the Lewis dot structure of strontium, Sr?
  2. A.1
  3. B.2
  4. C.7
  5. D.8

QUESTION 4

  1. Which of the following molecules have Lewis structures with lone pairs of electrons on the center atom?
  2. A.CO2
  3. B.OF2
  4. C.CCl4
  5. D.All of them

QUESTION 5

  1. Draw a suitable Lewis structure for Li2S. In the structure,
  2. A.each lithium atom makes one bond to sulfur.
  3. B.there are two lithium ions each with a +1 charge and and one sulfide ion with four pairs of electrons and a -2 charge. 
  4. C.there are wto lithium atoms and one sulfur atom with 6 electrons.
  5. D.there are two sulfide ions and one lithium ion.

QUESTION 6

  1. What is the expected bond angle of PBr3?
  2. A.120o
  3. B.90o
  4. C.180o
  5. D.109.5o

QUESTION 7

  1. Which of the following has polar bonds but is nonpolar?
  2. A.BeCl2
  3. B.CCl4
  4. C.CO2
  5. D.All of them

QUESTION 8

  1. The electron geometry and the molecular geometry of SCl2 are, respectively:
  2. A.tetrahedral, bent
  3. B.tetrahedral, trigonal pyramidal
  4. C.trigonal planar, bent
  5. D.linear, linear

QUESTION 9

  1. Which molecule listed below is a polar molecule?
  2. A.SiCl4
  3. B.O2
  4. C.Cl2O
  5. D.All of them.

QUESTION 10

  1. Which of the following compounds would require a Lewis structure that shows electrons were transferred (ionic) instead of being shared (covalent)? 
  2. A.Al2S3
  3. B.NO2
  4. C.CO2
  5. D.SF6

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