CHM 1045: Fall 1997 On-Line Practice Final

Module Four-Part II-Chemical Bonding

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Module 4 Part II Test Masters:

Jennifer Simons [Test Input]

John Taylor (johtaylo@fscj.edu) [Template Author]

Multiple Choice [One Answer Only]

Question 1

Which of the following molecules would be nonpolar?

a) SCO
b) CCl₄
c) H₂O
d) N₂ O
e) HCCl₃

Question 2

Which series correctly identifies the hybridization of the central atom in the following species?

HCN .......... Cl₂C=O ............ O = C = O

a) sp sp² sp
b) sp² sp² sp²
c) sp³ sp² sp
d) sp² sp² sp
e) sp sp² sp²

Question 3

Which series correctly identifies the hybridization of the central atom in the following species?
SOCl₂ .......... NH₄¹⁺ .......... H₂CO₃

a) sp³ sp³ sp²
b) sp³ sp sp²
c) sp³ sp sp³
d) sp² sp³ sp³
e) sp² sp³ sp²

Question 4

What is the proper oreder of decreasing F-X-F angle in the compounds below?
(A) BF₃ ........ (B) BeF₂ ........ (C) CF₄

a) A> B > C
b) B > C > A
c) C > B > A
d) B > A > C
e) C > A > B

Question 5

What is the proper order of increasing Cl - A - Cl angle.
(A) SCl₂......(B) PCl₃......(C) SiCl₄

a) A < B < C
b) A < C < B
c) C < A < B
d) C < B < A
e) B < C < A

Question 6

What is the total number of pie bonds in the following structure?

0=CHCH₂C=OCH₃

a) 1
b) 2
c) 3
d) 4
e) 5

Question 7

The maximum number of bonds that can be formed between two atoms is

a) 1
b) 2
c) 3
d) 4
e) 5

Question 8

The fact that the BF₃ molecules is planar means that the B atom is:

a) unhybridized
b) sp³ hybridized
c) sp² hybridized
d) sp hybridized
e) involoved in resonance

Question 9

Linear bond angles of 180^o in the BeCl₂ molecule means that the Be atom is:

a) unhybridized
b) sp³ hybridized
c) sp² hybridized
d) sp hybridized
e) involved in resonance

Question 10

The hybrid orbitals used by sulfur in SF₆ are:

a) sp
b) sp²
c) sp³
d) sp³d
e) sp³d²

Question 11

The hybrid orbitals used by boron in BCl₃ are:

a) sp
b) sp²
c) sp³
d) sp³d
e) sp³d²

Question 12

The hybrid orbitals used by nitrogen in NF₃ are:

a) sp
b) sp²
c) sp³
d) sp³d
e) sp³d²

Question 13

The electron pair geometry of S in SO₂ is

a) trignal planar
b) tetrahedral
c) trigonal bypyramidal
d) octohedral
e) none of the above

Question 14

Which of the following molecules contains polar bonds but is nonpolar?

a) SO₂
b) F₂
c) H₂O
d) NF₃
e) CF₄

Question 15

The angle between two sp² hybrid orbitals is

a) 60^o
b) 90^o
c) 109^o
d) 120^o
e) 180^o

Question 16

The angle between two sp hybrid orbitals is

a) 60^o
b) 90^o
c) 109^o
d) 120^o
e) 180^o

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