Chm 2045 Test 2 Form C Worksheet With Answers Page 8
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8CHM 2045
Test 2
Form C
23. For the following four bonds (1) Br−Br, (2) C−S, (3) C−N, and (4) K−F, which statement is
true?
A. Two of them are polar covalent bonds
B. Two of them are pure (non-polar) covalent bonds
C. There is no ionic bond.
D. Only Br−Br bond is pure (non-polar) covalent
E. None of the above is true.
Consider a molecule of PCl
. For questions 25-34, indicate whether each statement is true (A) or
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false (B) regarding PCl
.
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24. The bond between P and Cl is polar
25. PCl
is phosphorus pentachloride
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26. When the preferred Lewis structure is drawn, no lone pairs appear on P
27. Cl has higher first ionization energy than P
2
2
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2
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2
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2
2
28. Its electron configuration is 1s
2s
2p
3s
3p
4s
3d
4p
5s
4d
29. Cl has a larger atomic radius than P
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30. The molecule has sp
hybridization
31. PCl
is a polar molecule
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32. Its molecular geometry is trigonal bipyramidal
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