tg single LS check.tst

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Single Bond Lewis Structures Check
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) There are __________ valence electrons in the Lewis structure of CH3 CH2 Cl.
A) 10
B) 14
C) 12
D) 18
1)
E) 20
2) What is the correct Lewis structure for water?
..
A) H= O =H
··
2)
..
B) H- O -H
··
..
.. ..
C) : H - O - H :
··
·· ··
..
D) H-: O :-H
··
E) none of the above
3) Draw the Lewis electron-dot structure for CCl4 (carbon tetrachloride). Now describe your
structure in order:
1) What is in the center?
2) How many single bonds does the central atom have?
3) How many unshared pairs are there, total?
A) Cl, 4, 8
B) C, 3, 11
C) C, 4, 12
D) Cl, 3, 8
3)
E) C, 2, 7
4) Draw the Lewis structure for chloroform, CHCl3 . How many pairs of unshared electrons are in a
chloroform molecule?
A) 3
B) 1
C) 4
D) 9
E) none of the above
4)
5) Which of the following is the correct Lewis structure for OF 2?
5)
A)
B)
C)
D)
1
Answer Key
Testname: TG SINGLE LS CHECK
1)
2)
3)
4)
5)
E
B
C
D
B
2
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